Hematology Rationalization Exam
Questions and Answers 100% Pass
The most important practice in preventing the spread of disease is:
A. Wearing masks during patient contact
B. Proper handwashing
C. Wearing disposable laboratory coats
D. identifying specimens from known or suspected HIV- and HBV-infected patients with a red label -
✔✔B. Proper handwashing
The order used to put on PPE is:
A. Gloves, gown, mask
B. Mask, gown, gloves
C. Gown, mask, gloves
D. Gloves, mask, gown - ✔✔C. Gown, mask, gloves
The recommended disinfectant for blood and body fluid contamination is:
A. Sodium hydroxide
B. Antimicrobial soap
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C. Hydrogen peroxide
D. Sodium hypochlorite - ✔✔D. Sodium hypochlorite
Which of the following is a proper way to clean up a SMALL blood spill that has dried on a countertop?
A. Moisten it with a disinfectant and carefully absorb it with a paper towel
B. Rub it with an alcohol pad, then wipe the area with a clean alcohol pad
C. Scrape it into a biohazard bag and wash the surface with soap and water
D. Use a disinfectant wipe and scrub it in ever increasing concentric circles - ✔✔A. Moisten it with a
disinfectant and carefully absorb it with a paper towel
When a chemical is accidentally spilled on the body, the first thing to do is:
A. Notify a supervisor
B. Flush the area with water
C. Refer to the MSDS
D. Neutralize the chemical - ✔✔B. Flush the area with water (15mins)
When a person is receiving an electrical shock, all of the following should be done EXCEPT:
A. Pull the person away from the electrical source
B. Move the electrical source using a glass object
C. Turn off the circuit breaker
D. Move the electrical source using a wood object - ✔✔A. Pull the person away from the electrical source
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Total blood volume in an adult:
A. 1 to 2 liters
B. 2 to 3 liters
C. 4 to 5 liters
D. 5 to 6 liters - ✔✔D. 5 to 6 liters
MICROSAMPLING refers to blood collection by skin puncture and is frequently used on the following
types of patients:
1. Infants less than 6 months
2. Young children
3. Adult with poor veins, IV infusions
4. Severely burned patients
A. 1 and 2
B. 3 and 4
C. 1,2 and 3
D. 1, 2, 3 and 4 - ✔✔D. 1, 2, 3 and 4
Acceptable sites for skin puncture on infants are:
A. Middle of the hell
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B. Lateral or medial surface of the bottom of the heel
C. Inside of the heel, close to the arch of the foot, and any of the toes, close to the tip
D. Middle of the bottom of the heel - ✔✔B. Lateral or medial surface of the bottom of the heel
According to CLSI, a heel puncture lancet should puncture no deeper than:
A. 1.5 mm
B. 2.0 mm
C. 2.5 mm
D. 3.0 mm - ✔✔B. 2.0 mm
All are true for skin puncture, except:
A. The site of choice in infants is the lateral (outside) or medial (inside) surface of the plantar side
(bottom) of the heel
B. The site should be warmed to a temperature no greater than 42° C for no longer than 2 to 5 minutes,
unless the collection is for capillary blood gas analysis.
C. Povidone-lodine should not be used because of possible blood contamination, which would produce
falsely elevated levels of potassium, phosphorus, or uric acid.
D. Punctures should not be made more than 4 mm deep because of the risk of bone injury and possible
infection (osteomyelitis) - ✔✔D. Punctures should not be made more than 4 mm deep because of the risk
of bone injury and possible infection (osteomyelitis)
Which of the following is not an appropriate safety practice?
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