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Time-related factors for peripheral intravenous catheterization of critical children

Floriano, Claudia Maria de FreitasI Avelar, Ariane Ferreira MachadoI Peterlini, Maria Angélica SorginiI
  • IUniversidade Federal de São Paulo. São Paulo, São Paulo, Brazil.



To verify characteristics related to critical children, the catheter, and the professionals that will influence the time for the success of the puncture.


Descriptive, prospective, and correlation study, collected with an unique instrument, and a sample consisting of 89 children cared for in the emergency room. Statistical analysis of the association between time and explanatory variables was performed, considering a significance of 5%.


The median time for success was 193.4 seconds. Multivariate analysis showed that hypothermic patients (p=0.009) presented prolonged times for success and that the puncture was performed in a shorter time with Vialon® 22G catheters (p=0.045).


The median time for success was higher than recommended, being influenced by hypothermia and condition of veins the children. The Vialon® 22G catheter is the most suitable for puncturing critical patients. Thus, the incorporation of new practices and technologies is necessary for success to occur in less time.

Nursing, Pediatric Nursing, Nursing Care, Catheterization, Peripheral, Critical Care


The practice of intravenous therapy in children in emergency situations is part of the care provided by the health team. The success in peripheral intravenous puncture in these patients may be difficult for the nursing team, since not all procedures are successful in the first attempt, resulting in an increase in the performance time, consequently interfering with the final care (1). Thus, understanding the factors that involve the failure of puncture in critically ill children will provide evidence to improve this practice and favor its achievement in less time.

Although peripheral intravenous catheterization is part of the activities of nursing professionals, factors related to the physical and clinical characteristics of the child, in addition to the type and quality of the materials used, may hinder the puncture, and consequently increase the performance time of the procedure as well as interfere in the treatment (2-3).

Studies conducted to verify the attendance of children to emergency rooms and the profile of the child population cared for reveal that from 0.3 to 3.3% of children need cardiopulmonary resuscitation and 57 to 60% of these patients undergo peripheral intravenous puncture (4-5).

Risk factors related to the patient that lead to multiple procedures and longer puncture time, such as age below three years, present low weight or obesity, history of prematurity, skin color, psychomotor agitation, anxiety or fear, vascular diseases, or acute affections that interfere in blood circulation, e.g. dehydration or shock of varying etiology, determine greater vascular fragility, interference in visualization and palpation of the vessel, among other difficulties for the success of the procedure (3,6-7).

The type and material of the catheter used influence the catheterization, since, depending on the flexibility, the device’s handgrip to perform the puncture, and the device’s caliber, the professionals may have difficulties or facilities to perform the procedure (8-9).

The last European consensus for emergency care establishes the mark of 120 seconds for obtaining the puncture in critically ill children (10). Research shows that the median time for the success of puncture in children may vary from 68 to 167 seconds (1,11).

In view of the risk factors for the success of peripheral intravenous catheterization in children, this study verified which characteristics related to the patient, material used to perform the procedure, and professional team may interfere with the time for the success of the peripheral intravenous puncture.


To verify the characteristics related to the child, catheter used, and the professional who performed the procedure that may influence the time for the success of punctures in an emergency situation.

Thus, we intended to institute an intravenous therapy plan for critical children punctured in an emergency situation, so that the procedure is performed with fewer attempts and less time for success.


Ethical aspects

Data were collected after approval of the Research Ethics Committees of the Federal University of São Paulo (CEP 1869/08) and of the University Hospital of the University of São Paulo (CEP 839/08) in compliance with resolution 466 of December 12, 2012 of the National Health Council, Ministry of Health, which regulates research with human beings in the country.

The children selected for the study were included only after their parents or legal guardians signed the informed consent form. The professionals who punctioned the children also signed the informed consent form.

Study design, location, and period

This is a descriptive, prospective, and correlation study carried out in the pediatric Emergency Department of the University Hospital of the University of São Paulo. Data were collected in the period of one year, from March 2009 to March 2010.

Population or sample; inclusion and exclusion criteria

From a retrospective study carried out in the unit where the study was conducted, a consecutive convenience sample was determined limited for 100 children. However, after six months, we found that the sample did not reach the desired number of children and we extended it to one year, this being the time limit for the conclusion of the study. Thus, we determined the convenience sample limited to the time of data collection and development of the research, consisting of 89 children, aged between zero and 14 years, who were punctured during emergency care and were successful in the procedure.

The inclusion criterion of the children in the study was the successful accomplishment of the peripheral intravenous puncture during treatment in the pediatric emergency room. Children admitted to the emergency room and who already possessed an intravenous device were excluded from the study.

Study protocol

The data were collected in unique instrument developed by the researchers. Prior to data collection, the nurses of the institution were trained by the researcher to collect the information and procedures that involved it, following a manual elaborated for this purpose and that remained in the unit during the entire collection period. Prior to the beginning of the research, the instrument was pre-tested and the procedures employed for the research were observed to verify the adequacy of the training.

The data collection instrument was constructed following the sequence of care performed by the professionals of the unit during the children’s assistance and peripheral intravenous puncture, with the objective of facilitating the filling and depict how the procedure was carried out by the team, being filled out by the responsible nurses who attended the emergency, immediately after stabilization of the patient, with the vital parameters evaluated during the realization of the peripheral intravenous puncture.

The variables related to the children, to the peripheral intravenous puncture, and to the professional who performed the procedure were studied.

Regarding the characteristics of the children, the age group was classified, as recommended by the Ministry of Health (12), in infants (0 to <2 years), preschool children (2 to <7 years), and school children (>7 years). Sex was divided in male and female. For weight estimation, the Broselow® measuring tape was used, due to the impossibility of weighing the children during emergency care. The Broselow® tape helps to calculate the dose of drugs used during care, as well as to choose the devices to be used, such as intubation cannula and peripheral intravenous catheters (13). To classify the weight of the patients, the weight estimation, sex, and age in months were used, following the recommendations of the growth curves of the World Health Organization (14). The weight was classified as adequate, high, low, and very low.

Skin pigmentation may interfere with visualization of the veins in people with brown and black skin color. Thus, the skin color variable was classified as white and nonwhite, the latter consisting of patients with brown and black skin color. The color of the skin was considered through the declaration of the legal guardian of the child when filling the institution’s service sheet (15).

The vital parameters were composed by blood pressure, oxygen saturation, axillary temperature, and peripheral capillary refill. Blood pressure was measured by electronic devices and cuffs suitable for each age. Classification followed the recommendations of the American Heart Association (8). Oxygen saturation was measured using luminous sensors that measured the oxygenation of arterial hemoglobin, being classified as adequate (saturation ≥ 95%) or inadequate (saturation ≤ 95%). The axillary temperature was measured by a digital axillary thermometer, remaining in the region for one minute, at least, and was classified as hypothermia (temperature between 33°C and 35.9°C), normothermia (temperature between 36°C and 37.7°C), and hyperthermia or fever (temperature over 37.8°C). The peripheral capillary refill was measured after elevation of the arm above the cardiac level and pressing the nail bed, then the filling time was verified, being classified in adequate (time ≤2 seconds) or inadequate (time ≥3 seconds) (8).

The clinical conditions of the child at the time of admission to the emergency room were classified according to the main injuries mentioned by the American Heart Association (8) and more frequent diseases present in the pediatric ED, such as trauma, cardiorespiratory arrest, shock, seizure, among others.

The predisposing conditions for unsuccessful venipuncture were determined from the evaluations of the nurses who performed the procedures and were identified as difficult-to-see veins, tortuous veins, small veins, agitation, fever, presence of hematomas by previous punctures, a lack of palpable veins, difficulty in stabilizing the veins and no difficulty.

The variables related to the peripheral intravenous puncture were: number of attempts; type and caliber of the peripheral intravenous catheter; time for the success of peripheral intravenous puncture; and vessel in which the device was inserted.

The peripheral intravenous puncture was considered successful when the procedure resulted in blood reflux and infusion of one milliliter of saline solution, the catheter was fixated, and there was no sign of complications concerning the intravenous therapy (6).

The number of puncture attempts was defined by the number of times the professional attempted to puncture the child until the procedure was successful (6).

Three types of devices were used: one needled, named “A”, of 25 gauge caliber; and two of the out of the needle type, one named “B”, made of polyurethane and polytetrafluoroethylene that possessed the automatic needle recapping property, and another named “C”, in Vialon®, with flexible, anti-skid wings, flexible transparent extender tube, and a device for needle recapping, both in 22 and 24 gauge caliber. The catheter was chosen by the professional who performed the procedure, after assessing the child’s veins.

The time to perform the puncture was measured by the professional assigned to assist the peripheral intravenous catheterization, using a digital chronometer of the Stopwatch® brand. The equipment was triggered at the time of the garrotting of the child’s limb and disconnected after fixation of the catheter (1). The procedure was performed in the following sequence: member’s garrotting; skin antisepsis; peripheral intravenous puncture; infusion of one milliliter of saline solution; and fixation of the device.

The insertion vessels of the device were marked in a figure that contained the peripheral veins and were classified into: dorsal venous arch of the hand; median cubital cephalic vein; cephalic vein; dorsal metacarpal vein of the hand; dorsal venous arch of the foot; antebrachial vein; and basilic vein. The choice of the vessel to be punctured occurred after evaluation by the professional, determining the site, which should not interfere in the emergency care, and the caliber, which should be the most calibrated for rapid infusion of drugs and solutions.

The variables referring to the professionals who performed the procedure were: professional category (nurse, nursing technician and nursing assistant); workload; activities developed before the puncture; and work shift.

The work activity developed before the puncture was considered, in this study, as the actual work effectively performed by the professional until the execution of the procedure, being analyzed to verify whether the physical and mental exhaustion resulting of its implementation might interfere with the time of the procedure (16). The two work activities performed by the professionals were to provide integral care to the child and to prepare and administer medications to the patient.

The work shifts in the institution are divided in morning, afternoon, and night, the first two having a duration of 6 hours and the third of 12 hours. Thus, the morning and afternoon shifts were divided into two periods of 3 hours each (1st morning, 2nd morning; 1st afternoon, 2nd afternoon) and the night shift in four periods of 3 hours (1st night, 2nd night, 3rd night, 4th night), so that the analysis was similar among them, as well as to verify if the execution time of the procedure would differ between the periods.

Analysis of the results and statistics

The associations were made between the variable puncture time, which was described by measurement of position (mean, median, minimum, and maximum) and scale (standard deviation and interquartile interval), and the explanatory variables related to the child, to the device used and the professional who performed the puncture. The Mann-Whitney or Kruskal-Wallis statistical testes were used for this analysis. Based on the results of the associations, generalized linear models with inverse normal distribution and binding function µ-2 were adjusted, considering only the explanatory variables referring to the characteristics of the children and of the intravenous therapy that had a p-value of less than 0.2. A model with the variables referring to the professional was not proposed, since none of them presented association in the initial tests. The analyses considered a significance level of 5% and were performed with the aid of the software R 3.2.2.


Data from 89 children were analyzed, as shown in Figure 1.

Flowchart of the study participants, São Paulo, São Paulo, Brazil, 2010
Figure 1
Flowchart of the study participants, São Paulo, São Paulo, Brazil, 2010

The characteristics of the children are indicated in Table 1. The mean time was higher in infants, male, hypertensive, hypothermic, with adequate oxygenation, and inadequate peripheral capillary refill. The statistically significant results were found regarding patients with low weight and white skin color, who presented longer time to obtain the success of peripheral intravenous puncture.

Table 1
Median and interquartile interval of the characteristics of the child, according to time for the success of the peripheral intravenous puncture, São Paulo, São Paulo, Brazil, 2010
VariablePuncture time (seconds)Median [Interquartilerange]pvalue
Age groupInfant (n = 27)162.0 [94.5 - 256.0]0.1841
Preschool children (n = 50)149.0 [80.0 - 238.0]
School children (n = 12)87.0 [65.2 - 155.5]
SexMale (n = 51)124.0 [78.0 - 235.0]0.6672
Female (n = 38)163.0 [92.0 - 238.8]
Estimation of the nutrition degreeAdequate weight (n = 74)139.0 [83.0 - 237.0]0.0041
High weight (n = 5)52.0 [47.0 - 55.0]
Low weight (n = 7)235.5 [162.5 - 324.0]
Very low weight (n = 3)178.0 [126.0 - 199.0]
Skin colorNonwhite (n = 36)116.0 [69.8 - 189.8]0.0382
White (n = 53)169.0 [94.5 - 247.0]
Clinical conditionsShocks (n = 9)176.0 [139.0 - 336.5]0.2921
Seizure (n = 53)120.0 [74.0 - 220.0]
Respiratory affections (n = 16)130.5 [77.0 - 211.0]
Others (n = 11)134.0 [106.0 - 391.5]
Systolic blood pressureHypertensive (n = 30)176.5 [91.8 - 251.5]0.2551
Normotensive (n = 29)116.0 [73.0 - 194.0]
Hypotensive (n = 15)163.0 [95.0 - 309.0]
Oxygen saturationAdequate oxygenation (n = 71)140.0 [83.0 - 237.0]0.5972
Inadequate oxygenation (n = 18)118.5 [77.0 - 235.8]
Peripheral capillary refillInadequate (n = 52)149.5 [74.8 - 237.8]0.8482
Adequate (n = 35)126.0 [91.5 - 225.0]
TemperatureFever (n = 35)120.0 [68.0 - 193.0]0.1462
Normothermia (n = 31)124.0 [83.0 - 245.0]
Hypothermia (n = 21)198.0 [114.0 - 396.0]
Note:1Kruskal-Wallis test;2Mann-Whitney test.

Regarding the predisposing conditions for the failure of peripheral intravenous puncture evaluated by the professionals, it is possible to verify in Table 2 that the mean time to install the catheter was higher among children who had difficult-to-see veins, small veins, a lack of palpable veins, and who had a fever, with a statistically significant difference being identified.

Table 2
Median and interquartile range of the predisposing conditions for failure of the peripheral intravenous puncture, according to time for the success of the procedure, São Paulo, São Paulo, Brazil, 2010
VariablePuncture time(seconds)Median [Interquartilerange]pvalue
Difficult-to-see veinsNo (n = 64)120.0 [78.0 - 225.0]0.0221
Yes (n = 25)180.0 [132.5 - 416.0]
Tortuous veinsNo (n = 79)136.0 [79.2 - 233.8]0.2911
Yes (n = 10)194.0 [131.5 - 443.5]
Small veinsNo (n = 81)125.0 [78.0 - 217.5]0.0081
Yes (n = 8)401.0 [149.0 - 520.0]
AgitationNo (n = 37)140.0 [86.0 - 398.5]0.5111
Yes (n = 52)136.0 [78.2 - 233.8]
FeverNo (n = 72)124.0 [74.5 - 232.5]0.0521
Yes (n = 17)178.5 [127.2 - 249]
Presence of hematomas by previous puncturesNo (n = 85)138.0 [80.0 - 235.0]0.2081
Yes (n = 4)325.5 [183.2 - 461.5]
A lack of palpable veinsAbsent (n = 74)125.0 [74.8 - 231.2]0.0241
Present (n = 15)194.0 [116.0 - 431.0]
Difficulty in stabilizing the vesselNo (n = 86)136.0 [79.2 - 233.8]0.0761
Yes (n = 3)396.0 [295 - 413.5]
No difficultyNo (n = 66)167.5 [93.0 - 243.0]0.0281
Yes (n = 23)93.0 [67.0 - 139.5]
Note:1Mann-Whitney test.

The mean time for the success of the peripheral intravenous puncture was 193.4 (±180.9) seconds, and its distribution was asymmetric. One hundred and fifty-one punctures were performed in the 89 patients submitted to the procedure, with success being obtained for 53.9% in the first attempt, 29.2% in the second attempt, and 13.5% until the third attempt. The number of attempts ranged from 1 to 7 punctures. Regarding the mean time for the success of the peripheral intravenous puncture and the number of attempts, we observed that the greater the number of attempts generated, the greater the time for success of the procedure.

Regarding the variables related to the peripheral intravenous catheterization, Table 3 shows that the time of puncture success was lower when the type C, 22G caliber catheter was used. The vessels punctured with shorter time were the dorsal venous arch of the hand and the median cubital cephalic vein.

Table 3
Median and interquartile interval of the characteristics of the peripheral intravenous catheterization, according to time for the success of the peripheral intravenous puncture, São Paulo, São Paulo, Brazil, 2010
VariablePuncture time(seconds)Median [Interquartilerange]pvalue
Device caliber22 (n = 12)101.5 [66.8 - 150.0]0.1951
24 (n = 76)144.0 [80.8 - 237.8]
25 (n = 01)238.0 [238.0 - 238.0]
Catheter typeC (n = 42)115.0 [67.5 - 188.2]0.1491
B (n = 46)166.5 [91.5 - 247.5]
A (n = 01)238.0 [238.0 - 238.0]
Catheter insertion vesselDorsal venous arch of the hand (n = 42)122.0 [78.2 - 231.2]0.2601
Median cubital cephalic vein (n=31)122.0 [76.5 - 201.0]
Cephalic vein (n=4)124.5 [74.5 - 164.5]
Dorsal metacarpal vein of the hand (n = 2)125.0 [88.5 - 161.5]
Dorsal venous arch of the foot (n = 6)187.0 [124.5 - 231.5]
Antebrachial vein (n=2)351.0 [294.0 - 408.0]
Basilic vein (n=2)265.0 [257.5 - 272.5]
Note:1Kruskal-Wallis test.

Table 4 shows, concerning the characteristics of the professionals who performed the peripheral intravenous puncture, that the success in the procedure was obtained in less time by nursing technicians who had a weekly workload of 36 hours, activity developed before puncture was integral care, and who worked in the first morning period.

Table 4
Median and interquartile interval of the characteristics of the professionals who performed the procedure, according to time for the success of the peripheral intravenous puncture, São Paulo, São Paulo, Brazil, 2010
VariablePuncture time (seconds)Median [Interquartile range]pvalue
Professional categoryNurse (n=51)126.0 [86.0 - 220.0]0.4041
Nursing technician (n = 14)95.5 [68.2 - 200.0]
Nursing assistant (n = 24)174.0 [70.2 - 258.2]
Weekly workload36 h (n = 69)126.0 [78.0 - 237.0]0.9061
60 h (n = 3)160.0 [116.5 - 163.0]
66 h (n = 17)149.0 [95.0 - 210.0]
Activity developed before the punctureProviding integral care (n=72)123.0 [79.8 - 210.0]0.3271
Administering medication (n=17)180.0 [75.0 - 274.0]
Work shift time1st morning (n = 6)98.5 [75.0 - 133.2]0.7511
2nd morning (n = 12)167.5 [102.8 - 265.2]
1st afternoon (n = 8)171.0 [106.8 - 538.0]
2nd afternoon (n = 17)126.0 [92.0 - 198.0]
1st night (n = 17)134.0 [79.0 - 240.0]
2nd night (n = 13)112.5 [75.0 - 226.8]
3rd night (n = 7)180.0 [141.0 - 223.5]
4th night (n = 9)150.0 [98.5 - 237.8]
Note:1Kruskal-Wallis test.

For the multivariate analysis and adjustment of the final model, the non-normal distribution for the time of success of the puncture was considered. The first analysis for the construction of the multivariate model related to the characteristics of the child considered the variables that had a p-value lower than 0.2. After the first analysis, we found that some variables did not interfere in the time for the success of the puncture. Thus, the final model, adjusted after exclusion of the variables that interfered in the puncture time, showed that the mean time reduced significantly in children with high weight (estimate 0.000343 and p=0.017) and that hypothermic patients presented longer time for the success of the puncture (estimate -0.000030 and p=0.009).

Regarding the characteristics of the peripheral intravenous catheterization, one child punctured with the device A with a 25G caliber was excluded. The initial analysis of the interaction between the variables “caliber” and “type” of the device with the mean time of success showed that it varies between the calibers differently for each device and that the interaction effect was significant. The final model showed that the mean puncture time performed by the type C, 22G caliber device is lower compared to the 24G caliber device of the same type, and the result was statistically significant (estimate 0.000102 and p=0.045). There was a difference of 110 seconds with a confidence interval of 95% from 35.4 to 186.4 seconds favoring the 22G caliber compared to the 24G caliber for device C.


The mean time for the success of the peripheral intravenous puncture was higher than the 120 seconds recommended to perform the procedure in critically ill patient (10), because in this study 46.1% of the children required two or more punctures for the catheter to be installed. Patients who underwent only one peripheral intravenous catheterization presented a mean time of 90 seconds.

The clinical conditions of the child at the time of admission to the emergency unit may interfere, facilitating or hindering, the beginning of the administration of the solutions and drugs necessary for the care of critically ill patients (1).

In this investigation, we observed in the univariate analysis that the mean time for the success of the puncture was higher among infants, confirming data from the literature that demonstrated that in children aged under two years it is more difficult to succeed in the first attempt, since their peripheral veins are adhered to the connective tissue, making them more fragile (3,6-7).

Children with high weight had significant reduction in the time for puncture success. A study carried out with the aim of verifying factors that could influence the success of peripheral intravenous catheterization of children found that there is an inverse relationship between mean time for success of the puncture and weight (6). Children classified as obese have difficult-to-see veins and palpation, because they have a larger layer of adipose tissue, while children with low weight have small veins (15).

The hemodynamic instability of critically ill patients results in peripheral vasoconstriction, affecting the peripheral evaluation of the veins, making the vessels difficult to palpate and visualize and also fragile (3,6,15-17). Also, hypothermia is associated with peripheral vasoconstriction and impairment of visualization and palpation of peripheral veins, hindering the success of the procedure (10). This research confirmed in the multivariate analysis that hypothermia interfered in the time for success of the puncture.

Concerning the predisposing conditions for the failure of the peripheral intravenous puncture, we verified that the mean time to perform the procedure were higher in children who had difficult-to-see veins and palpation, and small veins, the latter being a predictive factor for the increase in the mean time of the procedure. Research conducted to identify the factors influencing the success of peripheral intravenous catheter insertion found that the main problems reported by the professionals were: difficulty to stabilize the vase; non-visible and non-palpable veins; small veins; and location of the vessels (15,18).

Studies that used technologies, such as the use of transillumination equipment with diodes or infrared emitting lights and ultrasonography, to increase the visualization of the peripheral veins verified a higher success rate of the catheterization and significant reduction in procedure time in children with difficult venous access (15,18-21). Thus, the use of these technologies to visualize the veins in an emergency situation, associated with the rapid evaluation of the child to be punctured, is an alternative to increase the success of the procedure and reduce the time of puncture.

The shortest time of success in the puncture was obtained with a type C device, and this fact can be explained by the provision of a better handgrip to the professional. The recommendation of the use of larger calibers when puncturing children in emergency situations is valid in this study, as we showed by multiple comparison a better time for the success of the puncture with 22G caliber devices compared to those of 24G caliber (8).

The insertion of the peripheral intravenous catheter should occur in a place that does not interfere with emergency care (8). In this study, the shorter times of success of the procedure occurred in the veins of the upper limbs, such as the dorsal venous arch of the hand, followed by the median cubital cephalic vein, thus showing that the upper limbs are places of better access and easy visualization to perform the peripheral intravenous puncture of children in emergency situations (3,18).

Regarding the professionals who performed the peripheral intravenous puncture, although they were not considered in the model for multivariate analysis, we found that the longest time for success occurred with nursing assistants. This confirms the need for a qualified professional approach due to the complexity of this care, and that the professional who performs the procedure needs to have scientific knowledge and technical ability regarding intravenous therapy (9).

The working conditions of nursing professionals can also disfavor safe practice. In this investigation, we verified that the longest time for the success of the puncture occurred among professionals who worked 60 hours a week, who had as activity preceding the procedure the preparation and administration of medications and who were in third period of the night shift. Such factors could increase the physical and mental exhaustion of the professional who performed the puncture, thus interfering in the care provided (22).

In the face of these results, we suggest that resources to facilitate peripheral intravenous catheterization are used. Transilluminator, ultrasonography, and fluoroscopy are alternatives that can facilitate the procedure in children in emergency situations and have been shown to be viable alternatives, as they promote better visualization of the veins (2,15-21).

Study limitation

We analyzed 89 children who were successful in peripheral intravenous puncture, assisted in an emergency situation, in the period of one year. More scientific evidence would be identified if the sample was larger.

Contributions to the field of nursing

Knowing the characteristics of the children undergoing intravenous therapy and factors influencing the time for the success of the intravenous puncture contributes to nurses’ planning regarding this practice. The study contributes in this sense, as it confirms characteristics related to the patient that interfere in the time of the success of the procedure, as well as identifying a puncture device that can reduce the time and increase the success of the procedure in children in an emergency situation.


The mean time for success was 193 seconds, higher than recommended by the literature. In the multivariate analysis, the variable that interfered with the highest average time for the success of the puncture was hypothermia. High weight was a reduction factor concerning the time of peripheral intravenous catheterization. The type C, 22G caliber out of the needle catheter proved to be the most suitable device for puncturing children in emergency situations. At the end of this investigation, we found that there is a need to incorporate new practices and technologies so that the time of success of peripheral intravenous puncture is lower and closer to the recommended by the literature.


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