NHA Certified Phlebotomy Technician (CPT)Specimen HandlingEasy
A phlebotomy technician is preparing to centrifuge several blood specimens. Which of the following is a critical step to ensure safe and effective operation?
- ALoad all tubes on one side of the rotor to maximize efficiency.
- BIncrease the RPM setting beyond the manufacturer's recommendation for faster separation.
- COpen the centrifuge lid immediately after the rotor stops to save time.
- DEnsure the centrifuge is balanced by placing tubes of equal weight opposite each other.
Show answer & explanationAnswer & explanation
Correct answer: D. Ensure the centrifuge is balanced by placing tubes of equal weight opposite each other.
Balancing the centrifuge is critical. Tubes of equal weight must be placed opposite each other in the rotor. Failure to balance can cause excessive vibration, damage to the centrifuge, breakage of tubes, and potential injury to the operator.
Why the other options are wrong
- A. Loading tubes on one side will severely unbalance the centrifuge, leading to dangerous vibrations and potential damage.
- B. Exceeding the manufacturer's RPM recommendations can damage the centrifuge, overheat specimens, and potentially cause tube breakage.
- C. Opening the lid before the rotor has completely stopped is extremely dangerous and can lead to severe injury from moving parts or broken tubes.
Centrifuge Balancing
A centrifuge must always be balanced by placing tubes of equal weight directly opposite each other in the rotor before operation to prevent damage and ensure safety.
- Prevents vibration and damage.
- Ensures operator safety.
- Essential for effective separation.
Memory trick: Centrifuge: Balance is Best for Break-Free Operation.