#1
Which of the following is a commonly used vein for venipuncture?
Cephalic vein
ExplanationCommonly used due to accessibility and visibility.
#2
Which of the following antiseptics is commonly used to clean the site before venipuncture?
Isopropyl alcohol
ExplanationEffective in reducing skin bacteria.
#3
What is the primary purpose of a sputum specimen collection?
To diagnose respiratory infections
ExplanationIdentifies pathogens causing respiratory illnesses.
#4
What is the purpose of using a tourniquet during venipuncture?
To dilate the vein
ExplanationFacilitates vein visibility and access for blood collection.
#5
What is the appropriate angle for needle insertion during venipuncture?
45 degrees
ExplanationOptimal angle for successful blood collection.
#6
Which type of urine collection method is suitable for bacterial culture analysis?
Catheterized urine
ExplanationMinimizes external contamination for accurate results.
#7
Which of the following specimens requires immediate chilling after collection?
Blood
ExplanationPrevents changes in analytes, ensuring accurate results.
#8
What is the recommended site for capillary puncture in infants?
Heel
ExplanationProvides adequate blood supply with minimal discomfort.
#9
Which of the following additives is commonly used in blood collection tubes to prevent clotting?
Heparin
ExplanationAnticoagulant to maintain sample fluidity.
#10
Which of the following is an example of a non-invasive specimen collection method?
Throat swab
ExplanationCollects material without penetrating the body.
#11
What is the advantage of using a sterile container for specimen collection?
Prevents contamination of the sample
ExplanationMaintains sample integrity for reliable testing.
#12
Which of the following tests requires a fasting specimen?
Glucose tolerance test
ExplanationEvaluates glucose metabolism under fasting conditions.
#13
What is the recommended method for collecting cerebrospinal fluid (CSF) for analysis?
Lumbar puncture
ExplanationDirect access to CSF for diagnostic purposes.
#14
What is the preferred specimen for testing for Helicobacter pylori infection?
Breath
ExplanationMeasures gas produced by the bacteria during metabolism.
#15
Which of the following is an appropriate method for collecting a wound culture specimen?
Collecting fluid from the wound using a syringe
ExplanationObtains material for culture analysis.
#16
Which of the following is an appropriate technique for collecting a throat swab specimen?
Avoiding contact with the tonsils and surrounding tissues
ExplanationMinimizes contamination during swabbing.