A CBC specimen was rejected for testing by the hematology department. The tube was filled completely and labeled properly. What might have been the reason for rejection?

Explanation:

The only thing I can think of is that if you are testing blood for a CBC, you are sometimes required to reject the 1st sample. Perhaps the technician forgot to take a sample that is just meant to be pitched or it was improperly labeled. I get my blood checked every other week, and the people who take it out are scrupulously careful in making sure that the first tube is labelled as waste. No one has every made the mistake of not doing it, but I can see it happening.

The question says it was properly labeled. I didn't see that. The only other thing I can think of is that the machine improperly recorded what the blood cells were and the numbers were all out of kilter.

the answer is b: 1.4 km/hr