Bone marrow sign of erythropoiesis?

Correct Answer: B

Rationale: The correct answer is B: Reticulocytes. Reticulocytes are immature red blood cells released by the bone marrow into the bloodstream during erythropoiesis. They still contain remnants of ribosomal RNA, giving them a reticulated appearance under a microscope. Myelocytes (A) are immature white blood cells, not involved in erythropoiesis. Ring sideroblasts (C) are found in the bone marrow in certain types of anemia, not a direct sign of erythropoiesis. Target cells (D) are red blood cells with a target-like appearance due to excess membrane, not specific to erythropoiesis.

Correct Answer: D

Rationale: The correct answer is D: Allograft. An allograft is a graft between members of the same species but with different genetic makeup (not identical twins). This answer is correct because allografts involve transplanting tissues or organs from one individual to another within the same species. Autograft (A) is a graft from one part of the body to another in the same individual. Isograft (B) is a graft between identical twins. Xenograft (C) is a graft between different species. In this context, allograft is the most appropriate term for graft between members of the same species with different genetic makeup.

Correct Answer: D

Rationale: The correct answer is D because polycythemia is a compensatory mechanism in response to tissue hypoxia in clients with COPD. As the lungs are unable to efficiently oxygenate the blood due to the lung disease, the body produces more red blood cells to increase oxygen-carrying capacity and compensate for the decreased oxygen levels. Choices A and C are incorrect because they do not directly address the underlying cause of polycythemia in COPD. Choice B is incorrect as overactive bone marrow is not the primary reason for polycythemia in COPD.

Correct Answer: B

Rationale: Explanation: Acetaminophen (Tylenol) is not known to impair the immune system. Ibuprofen can reduce inflammation, nitrofurantoin can affect the liver, and amphotericin B can suppress the immune system. Therefore, choice B is the correct answer.

Correct Answer: B

Rationale: The correct answer is B, tachypnea and restlessness. This is the immediate priority because it indicates respiratory distress, a potentially life-threatening complication in a client with pneumonia and HIV. Tachypnea suggests inadequate oxygenation, while restlessness may indicate hypoxia. Prompt intervention is crucial to prevent respiratory failure. Choice A, oral temperature, is important but not as urgent as addressing respiratory distress. Choice C, frequent loose stools, could be a concern but is not an immediate priority compared to respiratory distress. Choice D, weight loss, is relevant but does not require immediate intervention like tachypnea and restlessness.