HOC145 CHAPTER 12 QUIZ QUESTIONS AND ANSWERS | HOC145
CHAPTER 12 STUDY GUIDE & PRACTICE TEST 2026/2027
Which of the following is NOT a preexamination error? - ANS✔✔ the technologist running the
wrong test on a sample
Which statement best summarizes the importance of the quality of a sample? - ANS✔✔ low
quality samples generate low quality results
While preparing to send a sample to an external laboratory, you place a sample in bag to
prevent leaks. This bag is referred to as a: - ANS✔✔ secondary container.
After a busy day, your coworker finds a sample that needed to have been centrifuged several
hours ago. How do you respond? - ANS✔✔ reject the sample and call for a recollection
After leaving the tourniquet applied for longer than 1 minute, which of the following analytes
will be elevated and will continue to increase the longer the tourniquet is applied? - ANS✔✔
potassium
Which of the following is a preexamination error that can occur and alter test results? - ANS✔✔
using the incorrect heparin tube
The best way a phlebotomist can protect a sample from light is by doing which of the following?
- ANS✔✔ wrapping aluminum foil around the sample
A urine sample arrives in the lab via a pneumatic air tube. You see that the urine sample has no
label on it. However, you do see a lone patient label outside of the sample's bio bag. How do
you need to respond? - ANS✔✔ reject the sample and ask for recollection
CHAPTER 12 STUDY GUIDE & PRACTICE TEST 2026/2027
Which of the following is NOT a preexamination error? - ANS✔✔ the technologist running the
wrong test on a sample
Which statement best summarizes the importance of the quality of a sample? - ANS✔✔ low
quality samples generate low quality results
While preparing to send a sample to an external laboratory, you place a sample in bag to
prevent leaks. This bag is referred to as a: - ANS✔✔ secondary container.
After a busy day, your coworker finds a sample that needed to have been centrifuged several
hours ago. How do you respond? - ANS✔✔ reject the sample and call for a recollection
After leaving the tourniquet applied for longer than 1 minute, which of the following analytes
will be elevated and will continue to increase the longer the tourniquet is applied? - ANS✔✔
potassium
Which of the following is a preexamination error that can occur and alter test results? - ANS✔✔
using the incorrect heparin tube
The best way a phlebotomist can protect a sample from light is by doing which of the following?
- ANS✔✔ wrapping aluminum foil around the sample
A urine sample arrives in the lab via a pneumatic air tube. You see that the urine sample has no
label on it. However, you do see a lone patient label outside of the sample's bio bag. How do
you need to respond? - ANS✔✔ reject the sample and ask for recollection
