ECSA102 BLOB BCA 2026 COMPLETE EXAM
STUDY GUIDE
◉ 4) Which of the following constitutes *permanent rejection*
status of a donor?
a. a tattoo 5 months ago
b. recent close contact with a patient with viral hepatitis
c. 2 units of blood transfused 4 months previously
d. confirmed positive test for HbsAg 10 yrs. earlier. Answer: d.
A positive test for *HbsAg* at any time is an *indefinite deferral*.
◉ 6) Below are the results of the history obtained from a
prospective female blood donor:
- age: 16
- temperature: 99.0F (37.2C)
- 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?
a. none
b. 1
c. 2
,d. 3. Answer: b.
1. The Hct must be *>38%*
2. A donor may be *16 unless state law differs*.
3. Temperature must not exceed *99.5F/37.5C*
4. blood pressure must be *<180 mmHg systolic and <100 mmHg
diastolic*
5. pulse *50-100 unless an athlete* [which can be lower].
6. Toxoids and vaccines from synthetic or killed sources have *no
deferral*= more than *5 months*.)
◉ 8) Prior to blood donation, the intended venipuncture site must
be cleaned with a scrub solution of:
a. hypochlorite
b. isopropyl alcohol
c. 10% acetone
d. PVP iodine complex. Answer: d
1. The scrub must use iodine, eg, *PVP iodine complex*. Notes:
Donors who are *sensitive to iodine* can have the area cleaned with
a preparation of *2% chlorhexidine and 70% isopropyl alcohol*.
◉ 9) All donors blood testing must include:
a. complete Rh phenotype
b. anti-CMV testing
,c. DAT
d. serological test for syphilis. Answer: d
1. Testing tor *syphilis* was the first mandated donor screening test
for infectious disease
2. still part of *donor screening*.
◉ 10) During the preparation of *Platelet Concentrates* from
*whole blood*, the blood should be:
a. cooled towards 6 C
b. cooled towards 20-24 C
c. warmed to 37 C
d. heated to 57 C. Answer: b
Platelets are prepared and stored at *20-24* C for optimum function.
◉ 12) The *western blot* is a confirmatory test for:
a. CMV antibody
b. anti-HIV-1
c. HbsAg
d. serum protein abnormality. Answer: b
Western blot uses *purified HIV proteins* to confirm reactivity in
samples whose screening test for *anti-HIV* is positive.
, ◉ 13) The test that is currently used to detect donors who are
infected with the AIDS virus is:
a. anti-HBc
b. anti-HIV-1,2
c. HbsAg
d. ALT. Answer: b
The causative agent for AIDS is the *human immunodeficiency
virus* types *1 and 2*.
◉ 14) A commonly used *screening method for anti-HIV* detection
is:
a. latex agglutination
b. RIA
c. TLC
d. ELISA. Answer: d
The enzyme-labeled immunosorbent assay *[ELISA]* method:
- very *sensitive method* employed to *screen donors* for markers
of *transfusion-transmitted viruses*.
◉ 16) A unit of packed cells is split into 2 aliquots under closed
sterile conditions at 8 am. The *expiration* time for each aliquot is:
a. 4 pm the same day
b. 8 pm the same say
STUDY GUIDE
◉ 4) Which of the following constitutes *permanent rejection*
status of a donor?
a. a tattoo 5 months ago
b. recent close contact with a patient with viral hepatitis
c. 2 units of blood transfused 4 months previously
d. confirmed positive test for HbsAg 10 yrs. earlier. Answer: d.
A positive test for *HbsAg* at any time is an *indefinite deferral*.
◉ 6) Below are the results of the history obtained from a
prospective female blood donor:
- age: 16
- temperature: 99.0F (37.2C)
- 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?
a. none
b. 1
c. 2
,d. 3. Answer: b.
1. The Hct must be *>38%*
2. A donor may be *16 unless state law differs*.
3. Temperature must not exceed *99.5F/37.5C*
4. blood pressure must be *<180 mmHg systolic and <100 mmHg
diastolic*
5. pulse *50-100 unless an athlete* [which can be lower].
6. Toxoids and vaccines from synthetic or killed sources have *no
deferral*= more than *5 months*.)
◉ 8) Prior to blood donation, the intended venipuncture site must
be cleaned with a scrub solution of:
a. hypochlorite
b. isopropyl alcohol
c. 10% acetone
d. PVP iodine complex. Answer: d
1. The scrub must use iodine, eg, *PVP iodine complex*. Notes:
Donors who are *sensitive to iodine* can have the area cleaned with
a preparation of *2% chlorhexidine and 70% isopropyl alcohol*.
◉ 9) All donors blood testing must include:
a. complete Rh phenotype
b. anti-CMV testing
,c. DAT
d. serological test for syphilis. Answer: d
1. Testing tor *syphilis* was the first mandated donor screening test
for infectious disease
2. still part of *donor screening*.
◉ 10) During the preparation of *Platelet Concentrates* from
*whole blood*, the blood should be:
a. cooled towards 6 C
b. cooled towards 20-24 C
c. warmed to 37 C
d. heated to 57 C. Answer: b
Platelets are prepared and stored at *20-24* C for optimum function.
◉ 12) The *western blot* is a confirmatory test for:
a. CMV antibody
b. anti-HIV-1
c. HbsAg
d. serum protein abnormality. Answer: b
Western blot uses *purified HIV proteins* to confirm reactivity in
samples whose screening test for *anti-HIV* is positive.
, ◉ 13) The test that is currently used to detect donors who are
infected with the AIDS virus is:
a. anti-HBc
b. anti-HIV-1,2
c. HbsAg
d. ALT. Answer: b
The causative agent for AIDS is the *human immunodeficiency
virus* types *1 and 2*.
◉ 14) A commonly used *screening method for anti-HIV* detection
is:
a. latex agglutination
b. RIA
c. TLC
d. ELISA. Answer: d
The enzyme-labeled immunosorbent assay *[ELISA]* method:
- very *sensitive method* employed to *screen donors* for markers
of *transfusion-transmitted viruses*.
◉ 16) A unit of packed cells is split into 2 aliquots under closed
sterile conditions at 8 am. The *expiration* time for each aliquot is:
a. 4 pm the same day
b. 8 pm the same say
