#1
Which of the following is a common site for dermal puncture?
Volar aspect of the wrist
ExplanationCommon site due to accessibility of capillaries.
#2
What is the recommended site for dermal puncture in infants?
Heel
ExplanationSoft tissue and abundant capillaries in the heel.
#3
What is the primary purpose of dermal puncture in healthcare?
To collect blood for routine tests
ExplanationPrimary method for obtaining capillary blood samples.
#4
Which finger is commonly used for dermal puncture in adults?
Ring finger
ExplanationConvenient and comfortable for both patients and practitioners.
#5
What is the appropriate angle for inserting a dermal puncture lancet?
45 degrees
ExplanationOptimal angle for successful puncture without causing excess trauma.
#6
Which of the following factors can affect blood flow during dermal puncture?
Cold temperature
ExplanationCold constricts blood vessels, reducing blood flow.
#7
What is the primary advantage of dermal puncture over venipuncture in certain situations?
Greater patient comfort
ExplanationLess invasive and painful for patients.
#8
What is the recommended depth for a dermal puncture lancet?
3-4 mm
ExplanationOptimal depth for successful capillary blood collection.
#9
Which of the following is a complication associated with dermal puncture?
Hematoma
ExplanationCan occur due to damage to surrounding tissues.
#10
What is the maximum recommended volume of blood collected through dermal puncture for newborns?
0.5 mL
ExplanationSmall volume to avoid excessive blood loss.
#11
Which of the following is a potential complication of excessive squeezing during capillary blood collection?
Hemolysis
ExplanationRupture of red blood cells due to excessive pressure.
#12
Which of the following factors may lead to inaccurate results during dermal puncture blood glucose testing?
Recent exercise
ExplanationExercise can alter blood glucose levels.