The ratio of the volume of red blood cells to the total volume of blood is the definition for
Hemoglobin
Hematocrit
Erythropoietin
Erythrocyte sedimentation rate
The Correct Answer is B
a) Hemoglobin: Hemoglobin is the oxygen-carrying protein inside RBCs, measured in grams per deciliter.
b) Hematocrit: Hematocrit is the percentage of whole blood volume made up by red blood cells (RBCs). It's used to assess anemia or polycythemia.
c) Erythropoietin: This is a hormone (mostly from the kidneys) that stimulates RBC production in the bone marrow.
d) Erythrocyte sedimentation rate: This test measures how quickly RBCs settle in a test tube, used as a nonspecific marker for inflammation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
a) Calcium: Important for bones and muscle function, but not directly involved in thyroid hormone production.
b) Sodium: Maintains fluid balance and nerve function but is not essential for thyroid hormone synthesis.
c) Bromine: Has no known essential role in human nutrition or thyroid function.
d) Iodine: Iodine is a crucial component of thyroid hormones T3 (triiodothyronine) and T4 (thyroxine). Without iodine, the thyroid cannot synthesize these hormones.
e) Potassium: Important in nerve impulse transmission and muscle contraction, not thyroid function.
Correct Answer is C,B,A
No explanation
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