Exam Questions And Answers
1. What mask needs to be worn in a room with airborne isolation
precautions ...ANSWER...N-95 Mask (plus gloves & a gown)
2. What does PPE stand for ...ANSWER...Personal Protective Equipment
3. What PPE needs to be worn in a room with droplet isolation
precautions ...ANSWER...Gloves, mask, eye protection & gown
4. What PPE needs to be worn in a room with contact
precautions ...ANSWER...Gloves & gown
5. What gauge needle will cause hemolysis ...ANSWER...25 gauge (and above)
(to small & it breaks the blood up; to large and it slams into the back of the
tube)
6. What is the range of needle gauges for blood donation ...ANSWER...16-18
gauge
7. Needles for phlebotomy should be pitched how many
degrees ...ANSWER...15o-30 degree angle
8. Needles should be inserted how far ...ANSWER...¼"- ½" or until you reach a
change of resistance
,9. What are the three vessels of the anti cubital fossa ...ANSWER...Median
Cubital Vein, Cephalic Vein, Brachial/basilic Vein
10.Which vessel is the first choice for a blood draw ...ANSWER...Median
Cubital Vein
11.Which vessel is the second choice for a blood draw ...ANSWER...Cephalic
Vein
12.Which vessel is the third choice for a blood draw
...ANSWER...Brachial/basilic Vein
13.Which vessel is lateral to the patient's body ...ANSWER...Cephalic Vein
14.What are the names of the three main vessels of the
body ...ANSWER...Veins, arteries, capillaries
15.What are the microscopic blood vessels responsible for O2
exchange ...ANSWER...Capillaries
16.How much blood is needed for each blood culture
bottle ...ANSWER...Adults: 8-10ml (3-4ml in each bottle, aerobic &
anaerobic)
17.How many liters of blood does the average adult have ...ANSWER...5 (4-6
liters)
, 18.What is the name of the part of the blood which suspends all of its whole
material ...ANSWER...Plasma
19.What is serum ...ANSWER...Plasma without the clotting factor
20.What type of anemia can occur in infants because of frequent excessive
blood drawing ...ANSWER...Iatrogenic anemia
21.What is the lifespan of an RBC ...ANSWER...90-120 days
22.What does CBC stand for ...ANSWER...Complete blood count
23.What is a CBC with differential ...ANSWER...measures the levels of red
blood cells, white blood cells, platelet levels, hemoglobin and hematocrit
24.What are responsible for forming clots ...ANSWER...Platelets
(Thrombocytes)
25.What element of the blood is responsible for achieving
hemostasis ...ANSWER...Platelets
26.What is the term for an increase in the number of formed elements of
blood due to a decrease in plasma ...ANSWER...Hemoconcentration