Parathyroid glands produce a hormone that
stimulates the formation of white blood cells
increases the level of calcium ions in the blood
increases the level of sodium ions in the blood
increases the level of potassium ions in the blood
increases the level of glucose in the blood
The Correct Answer is B
a) Stimulates the formation of white blood cells: This is associated with bone marrow and not parathyroid hormone (PTH).
b) Parathyroid hormone (PTH) increases blood calcium levels by stimulating bone resorption, increasing calcium reabsorption in the kidneys, and activating vitamin D to increase calcium absorption from the gut.
c) Increases the level of sodium ions in the blood: Aldosterone regulates sodium levels, not PTH.
d) Increases the level of potassium ions in the blood: This is also regulated by aldosterone and the kidneys, not PTH.
e) Increases the level of glucose in the blood: Glucagon and cortisol are more directly involved in increasing blood glucose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
a) It is transported to the liver and becomes part of the bile: This applies to bilirubin, a byproduct of heme, not iron.
b) It is converted into stercobilin and gives color to feces: Stercobilin is derived from bilirubin, not iron.
c) It is used to synthesize proteins: While iron is important in protein function, its primary fate is recycling for hemoglobin.
d) It attaches to transferrin and is transported to bone marrow for use in hemoglobin synthesis. Iron is bound to transferrin in the blood and transported to the bone marrow for new red blood cell (hemoglobin) synthesis.
Correct Answer is B
Explanation
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.
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