NHA Certified Phlebotomy Technician (CPT)Specimen HandlingHard
A phlebotomy technician is preparing to ship a frozen plasma specimen to a reference laboratory for specialized testing. Which of the following is the most appropriate packaging method to maintain specimen integrity?
- ATransport the specimen in a primary container, secondary container, and robust outer packaging with dry ice.
- BWrap the specimen in absorbent material and place it directly into a shipping box.
- CShip the specimen with a room-temperature gel pack to prevent thawing.
- DPlace the specimen in a plastic bag within a standard padded envelope.
Show answer & explanationAnswer & explanation
Correct answer: A. Transport the specimen in a primary container, secondary container, and robust outer packaging with dry ice.
Frozen specimens, especially for shipping, require triple packaging (primary, secondary, and outer) to contain potential leaks and provide insulation. Dry ice is essential to maintain the frozen state during transport, and appropriate labeling for dry ice and biohazard content is also required by regulations.
Why the other options are wrong
- B. While absorbent material is good, direct placement in a box without secondary containment and temperature control is inadequate for frozen specimens.
- C. A room-temperature gel pack will not prevent a frozen specimen from thawing; a frozen gel pack or dry ice is needed.
- D. A plastic bag and padded envelope offer insufficient protection and temperature control for a frozen biohazardous specimen.
Frozen Specimen Shipping
Frozen biological specimens for shipping must use a triple packaging system (primary, secondary, outer) and be kept frozen with dry ice to comply with regulations and maintain integrity.
- Triple packaging is mandatory.
- Dry ice maintains frozen state.
- Complies with IATA/DOT regulations.
Memory trick: Frozen Samples: Triple Pack, Dry Ice Track.