BASIC AND APPLIED CONCEPTS OF
BLOOD BANKING AND TRANSFUSION
PRACTICES 4TH EDITION BY PAULA R
HOWARD PRACTICE SOLUTION REVIEW
SHEET TESTED QUESTIONS AND CORRECT
ANSWERS
⩥ When RBCs are stored, there is a "shift to the left." This means:
a. Hemoglobin oxygen affinity increases, owing to an increase in 2,3-
DPG.
b. Hemoglobin oxygen affinity increases, owing to a decrease in 2,3-
DPG.
c. Hemoglobin oxygen affinity decreases, owing to a decrease in 2,3-
DPG.
d. Hemoglobin oxygen affinity decreases, owing to an increase in 2,3-
DPG..
Answer: b. Hemoglobin oxygen affinity increases, owing to a decrease
in 2,3-DPG.
,⩥ Which of the following anticoagulant preservatives provides a storage
time of 35 days at 1°C to 6°C for units of whole blood and prepared
RBCs if an additive solution is not added?
a. ACD-A
b. CP2D
c. CPD
d. CPDA-1.
Answer: d. CPDA-1
⩥ What are the current storage time and storage temperature for platelet
concentrates and apheresis platelet components?
a. 5 days at 1°C to 6°C
b. 5 days at 24°C to 27°C
c. 5 days at 20°C to 24°C
d. 7 days at 22°C to 24°C.
Answer: c. 5 days at 20°C to 24°C
With continuous agitation
⩥ Maintain vascular integrity
Initial arrest of bleeding
,Stabilization of hemostatic plug.
Answer: Role of platelets
⩥ Factors influencing platelet metabolism and function in a closed
system except:
a. Total platelet count
b. Duration of storage
c. Temperature of storage
d. Fibrinogen concentration.
Answer: d. Fibrinogen concentration
⩥ Platelet components are stored up fo 5 days at 20-24'C with
continuous agitation. When necessary during shipping, platelets can be
stored without agitation for up to _____ (at 20 to 24'C) during a 5-day
storage period
a. 4 hrs
b. 6 hrs
c. 12 hrs
d. 24 hrs.
Answer: d. 24 hrs
, Platelets stored ar (1-6'C): 2 days
⩥ If a platelet bag is broken or opened, the platelets must be transfused
within _____ when stored at 20 to 24'C
a. 4 hrs
b. 24 hrs
c. 5 days
d. 7 days.
Answer: a. 4 hrs
⩥ What is the minimum number of platelets required in a platelet
concentrate prepared from whole blood by centrifugation (90% of
sampled units)?
a. 5.5 x 10^11
b. 3 x 10^10
c. 3 x 10^11
d. 5.5 x 10^10.
Answer: d. 5.5 x 10^10
⩥ RBCs can be frozen for:
BLOOD BANKING AND TRANSFUSION
PRACTICES 4TH EDITION BY PAULA R
HOWARD PRACTICE SOLUTION REVIEW
SHEET TESTED QUESTIONS AND CORRECT
ANSWERS
⩥ When RBCs are stored, there is a "shift to the left." This means:
a. Hemoglobin oxygen affinity increases, owing to an increase in 2,3-
DPG.
b. Hemoglobin oxygen affinity increases, owing to a decrease in 2,3-
DPG.
c. Hemoglobin oxygen affinity decreases, owing to a decrease in 2,3-
DPG.
d. Hemoglobin oxygen affinity decreases, owing to an increase in 2,3-
DPG..
Answer: b. Hemoglobin oxygen affinity increases, owing to a decrease
in 2,3-DPG.
,⩥ Which of the following anticoagulant preservatives provides a storage
time of 35 days at 1°C to 6°C for units of whole blood and prepared
RBCs if an additive solution is not added?
a. ACD-A
b. CP2D
c. CPD
d. CPDA-1.
Answer: d. CPDA-1
⩥ What are the current storage time and storage temperature for platelet
concentrates and apheresis platelet components?
a. 5 days at 1°C to 6°C
b. 5 days at 24°C to 27°C
c. 5 days at 20°C to 24°C
d. 7 days at 22°C to 24°C.
Answer: c. 5 days at 20°C to 24°C
With continuous agitation
⩥ Maintain vascular integrity
Initial arrest of bleeding
,Stabilization of hemostatic plug.
Answer: Role of platelets
⩥ Factors influencing platelet metabolism and function in a closed
system except:
a. Total platelet count
b. Duration of storage
c. Temperature of storage
d. Fibrinogen concentration.
Answer: d. Fibrinogen concentration
⩥ Platelet components are stored up fo 5 days at 20-24'C with
continuous agitation. When necessary during shipping, platelets can be
stored without agitation for up to _____ (at 20 to 24'C) during a 5-day
storage period
a. 4 hrs
b. 6 hrs
c. 12 hrs
d. 24 hrs.
Answer: d. 24 hrs
, Platelets stored ar (1-6'C): 2 days
⩥ If a platelet bag is broken or opened, the platelets must be transfused
within _____ when stored at 20 to 24'C
a. 4 hrs
b. 24 hrs
c. 5 days
d. 7 days.
Answer: a. 4 hrs
⩥ What is the minimum number of platelets required in a platelet
concentrate prepared from whole blood by centrifugation (90% of
sampled units)?
a. 5.5 x 10^11
b. 3 x 10^10
c. 3 x 10^11
d. 5.5 x 10^10.
Answer: d. 5.5 x 10^10
⩥ RBCs can be frozen for:
