You ran a CBC and found the HGB was 7.2 g/dL. You then ran a microhematocrit in duplicate and your average result was 27%. What is the most likely reason that these results do not follow the rule of three? (Hint: use the rule of three to calculate the expected microhematocrit value)

The average lifespan of a normal erythrocyte is:

In normal deoxygenated hemoglobin the iron atom is found in which of the following states?

Which of the following metabolic pathways requires G6PD to function.

A manual erythrocyte count was performed on an EDTA-anticoagulated sample. The sample was diluted 1:200 and a total of 235 RBC’s were counted in 5 small (RBC) squares on one side of the hemocytometer. A total of 275 RBC’s were counted in 5 small (RBC) squares on the other side.  What is the total erythrocyte count?

A 72-year-old client is admitted with progressive confusion, visual hallucinations, and parkinsonian motor symptoms. The provider suspects Lewy body dementia. Which pathophysiological changes are associated with this condition? Select all that apply.

During a neurological assessment of a 68-year-old client with suspected stroke, which technique would provide the most valuable information about potential upper motor neuron involvement?

True or False: The RBC, HGB, and HCT are normally higher in females than in males

Which of the following sources of error falsley DECREASES the ESR?

A nurse is reviewing cerebral blood flow (CBF) regulation with a group of nursing students caring for a client with a traumatic brain injury. Which statements about CBF regulation are correct? Select all that apply.