QUESTIONS WITH CORRECT ANSWERS 2025-2026
arterial blood leaves thekheart through the - CORRECT ANSWER -aorta
low and high controls are required for a glucose meter. these are run - CORRECT ANSWERk-
exactly the same as patient samples are run
blood culture collection sites are prepared by swabbing the venipuncture site with iodine, which is left on
for at least - CORRECT ANSWER -20 seconds
arterial walls have thickklayers of to withstand increased blood pressure during the contraction p
hase of the heart and maintain blood flow duringkits resting phase - CORRECT ANSWER -muscle
what is a normal finding in a plasma speciman - CORRECT ANSWER -light, yellow color
a blood specimen for a 2 hour postprandial glucose test is collected - CORRECT ANSWER -
after the patient eats a meal
a patientkhas a cast on the left arm and an IV in the rightkforearm. a venipuncture in the patients right arm
must be done - CORRECT ANSWER -below the IV in a different vein
a specimen for a blood ammonia test is to be preserved from the time of collection until it is tested in the
laboratory. the best course of action is to keep the tube - CORRECT ANSWER -in a cup of ice water
the performance and speed of centrifuges should be checked - CORRECT ANSWER -every 3 months
the preferred depth of incision for a skin puncture of a premature infant is - CORRECT ANSWER -0.85 mm
the transportation of blood and body fluid specimens by pneumatic tube system - CORRECT ANSWER -
is not recommended
, when collecting blood samples from a patient with a venous access device (VAD) - CORRECT ANSWER -
discard the first 5 mL of blood to flush the VAD
a phlebotomist must collect from a patient in isolation with contact precautions. The appropriate persona
l protective equipmentk(PPE) is - CORRECT ANSWER -gloves and gown
whn blood leaves the right ventricle, it enters the - CORRECT ANSWER -right and left pulmonary arteries
when collecting blood from an infant or neonate, the best site for a skin puncture is - CORRECT ANSWER -
the medial or lateral section of the foot
what g value and minimum time are used in a centrifuge to effect good separation of clotted blood from s
erum -kCORRECT ANSWER -1000 rpm for 10 minutes
obese patients may be difficult to draw because their veins can be more difficult to palpate. excessive pro
bing by the phlebotomist may - CORRECT ANSWER -release some tissue clotting factors
what percentage of water in a human body is found within cells - CORRECT ANSWER -60%
when preparing a site for venipuncture, which of the followingkis not mandated - CORRECT ANSWER -
always start with using iodine
which of the following is true of veins - CORRECT ANSWER -all veins contain deoxygenated blood
which of the following is not true of arteries - CORRECT ANSWER -arteries have a pulse
concerningkthe collection of a timed specimen, which of the following is true - CORRECT ANSWER -
if a timed glucose is collected too early, the result could be falsely evaluated
when using vacuum tubes, the proper order of the collection tubes is - CORRECT ANSWER -
red, light blue, gel separator, green