Polycythemia vera is a disorder of the blood-producing cells of the bone marrow. This disorder results in which of the following?

Correct Answer: C

Rationale: The correct answer is C: Overproduction of red blood cells. Polycythemia vera is characterized by the excessive production of red blood cells in the bone marrow, leading to an increased number of red blood cells in the bloodstream. This condition can result in thickening of the blood, increased risk of blood clots, and potential complications such as stroke or heart attack. Explanation of why other choices are incorrect: A: Underproduction of white blood cells - Polycythemia vera does not involve a decrease in white blood cell production. B: Underproduction of platelets - Polycythemia vera does not lead to a decrease in platelet production. D: Overproduction of bone cells - Polycythemia vera does not affect the production of bone cells; it specifically involves the overproduction of red blood cells.

Correct Answer: D

Rationale: The correct answer is D: Too few white blood cells. Leukopenia refers to a decrease in white blood cells. White blood cells are crucial for the immune system to fight infections. Easy bleeding and bruising (A) are associated with low platelets, not white blood cells. Too few red blood cells (C) is known as anemia. While white blood cells are important for immunity, platelets help with blood clotting, and red blood cells carry oxygen.

Correct Answer: A

Rationale: The correct answer is A: Applying pressure to the biopsy site. This is the priority post-procedure as it helps prevent bleeding and hematoma formation. Applying pressure aids in achieving hemostasis, reducing the risk of complications. Choice B is incorrect as inspecting for ecchymoses is important but not the priority over preventing bleeding. Choice C is also incorrect as sending specimens to the lab can be done after ensuring the client's safety. Choice D is incorrect as teaching about avoiding vigorous activity is important but not the immediate priority post-procedure.

Correct Answer: C

Rationale: The correct answer is C: MCHC. MCHC stands for Mean Corpuscular Hemoglobin Concentration, which is a measure of the average concentration of hemoglobin in a given volume of packed red blood cells. In this case, a saturation of 32-36% indicates the concentration of hemoglobin in the red blood cells. MCV (Mean Corpuscular Volume) measures the average volume of a red blood cell, MCH (Mean Corpuscular Hemoglobin) measures the average amount of hemoglobin in a red blood cell, and RDW (Red Cell Distribution Width) measures the variation in red blood cell size. These parameters do not directly indicate the saturation of hemoglobin in red blood cells, making them incorrect choices for this scenario.

Correct Answer: A

Rationale: The correct treatment option for Wilson's disease is A: Penicillamine. Penicillamine is a chelating agent that helps remove excess copper from the body. It binds to copper, forming a stable complex that can be excreted in the urine. Riboflavin (B) is a vitamin and not used in Wilson's disease treatment. Trientine (C) is another chelating agent used in Wilson's disease treatment but is not as commonly prescribed as penicillamine. Potassium disulfide (D) is not a recognized treatment for Wilson's disease.