Blood Bank ASCP Blood Products

1. Which one of the following constitutes permanent rejection status of a donor?

A tattoo 5 month previously

Recent close contact with a patient with viral hepatitis

2 units of blood transfused 4 months previously

Confirmed positive test for HBsAg 10 years previously

A positive test for HbsAg at any time is an indefinite deferral.

Explanation

A positive test for HbsAg at any time is an indefinite deferral.

2. Which blood product is most appropriate for a patient with severe neutropenia and an infection unresponsive to antibiotics?

Fresh Frozen Plasma (FFP)

Cryoprecipitate

Platelets

Granulocyte concentrates

Granulocyte concentrates are the correct choice for patients with severe neutropenia (low neutrophil count) who have an infection unresponsive to antibiotics. These concentrates provide the necessary neutrophils to help fight off bacterial and fungal infections. Fresh Frozen Plasma (FFP) and Cryoprecipitate are used for coagulation deficiencies, and Platelets are for thrombocytopenia (low platelet count), making them inappropriate for neutropenia-related infections.

Explanation

Granulocyte concentrates are the correct choice for patients with severe neutropenia (low neutrophil count) who have an infection unresponsive to antibiotics. These concentrates provide the necessary neutrophils to help fight off bacterial and fungal infections. Fresh Frozen Plasma (FFP) and Cryoprecipitate are used for coagulation deficiencies, and Platelets are for thrombocytopenia (low platelet count), making them inappropriate for neutropenia-related infections.

3. For apheresis donors who donate platelets more frequently than every 4 weeks must be performed prior to the procedure and be at least:

150 x 10^3/ul (150 x 10^9/L)

200 x 10^3/ul (200 x 10^9/L)

250 x 10^3/ul (250 x 10^9/L)

300 x 10^3/ul (300 x 10^9/L)

The minimum platelet count required for frequent repeat donors is 150 x 10^3/uL (150 x 10^9/L). A platelet count is not required prior to the first donation or if the interval between donations is at least 4 weeks.

Explanation

The minimum platelet count required for frequent repeat donors is 150 x 10^3/uL (150 x 10^9/L). A platelet count is not required prior to the first donation or if the interval between donations is at least 4 weeks.

4. The minimum hemoglobin concentration in a fingerstick from a male blood donor is

12.0 g/dl(120 g/L)

12.5 g/dL (125 g/L)

13.5 g/dL(135 g/L)

15.0 g/dL (150 g/L)

All donors, regardless of sex, require a minimum hemoglobin of 12.5 g/dL (125 g/L). The value must not be performed on an earlobed stick.

Explanation

All donors, regardless of sex, require a minimum hemoglobin of 12.5 g/dL (125 g/L). The value must not be performed on an earlobed stick.

5. A cause for permanent deferral of blood donation is

Diabetes

Residence in an endemic malaria region

History of jaundice of uncertain cause

History of therapeutic rabies vaccine

Jaunice is a sign of liver imapirment, which might be due to HBV or HCV. Infection with HBV and HCV is a cause for indefinite deferral.

Explanation

Jaunice is a sign of liver imapirment, which might be due to HBV or HCV. Infection with HBV and HCV is a cause for indefinite deferral.

6. Below are the results of the history obtained from a prospective femal blood donor age 16 temperature 99.0 F (37.2 C) Hct 36% history tetanus toxoid immunization 1 week previously How many of the above results excludes this donor from giving blood for a routine transfusion?

None

1

2

3

The Hct must be >38%. A donor may be 16 unless state law differs. Temperature must not exceed 99.5 degrees Fahrenheit or37.5 degrees Celsius, blood pressure must be

Explanation

The Hct must be >38%. A donor may be 16 unless state law differs. Temperature must not exceed 99.5 degrees Fahrenheit or37.5 degrees Celsius, blood pressure must be

7. According to AABB standards, which of the following donors may be accepted as a blood donor?

Traveled to an area endemic for malaria 9 months previously

Spontaneous abortion at 2 months of pregnancy, 2 month previously

Resides with a known hepatitis patient

Received a blood transfusion 72 weeks previously

A woman who had a spontaneous abortion at 2 months of pregnancy, 3 months previously would be acceptable. A donor is acceptable if she has not been pregnant in the previous 6 weeks.

Explanation

A woman who had a spontaneous abortion at 2 months of pregnancy, 3 months previously would be acceptable. A donor is acceptable if she has not been pregnant in the previous 6 weeks.

Blood Bank Ascp Blood Products