A client diagnosed with meningitis says, “I’m just so thirsty. I keep drinking and drinking, but I can’t seem to get enough. I’ve been urinating a lot, too.” The nurse checks the client’s urine specific gravity and finds it to be very dilute. The nurse suspects that the client may be developing diabetes insipidus. Which assessment finding(s) would support the nurse’s suspicion? (Select all that apply)

Reasoning:

Choice A reason: Hemoglobin A is the normal adult hemoglobin, comprising two alpha and two beta chains. In sickle cell anemia, a mutation in the beta-globin gene produces hemoglobin S, not hemoglobin A, which does not cause sickling or the vaso-occlusive crises characteristic of the disease.

Choice B reason: Hemoglobin S is the abnormal hemoglobin in sickle cell anemia, resulting from a point mutation in the beta-globin gene. This causes red blood cells to sickle under stress, leading to hemolysis and vaso-occlusion, resulting in pain, organ damage, and the clinical features of sickle cell crises.

Choice C reason: Hemoglobin M is a rare hemoglobin variant causing methemoglobinemia, not sickle cell anemia. It results from mutations affecting heme iron, leading to cyanosis, not the sickling and vaso-occlusion seen with hemoglobin S, making it irrelevant to the client’s condition.

Choice D reason: Hemoglobin F, or fetal hemoglobin, is present in newborns and persists in small amounts in adults. In sickle cell anemia, increased hemoglobin F can reduce sickling, but it is not the cause. Hemoglobin S drives the disease’s pathophysiology, not hemoglobin F.

Reasoning:

Choice A reason: Feverfew, an herbal supplement, is sometimes used for migraines but has no proven role in aneurysm management. It may affect platelet function, increasing bleeding risk if an aneurysm ruptures, making it an inappropriate and potentially harmful recommendation for this client’s condition.

Choice B reason: Opioid analgesics are not routinely recommended for aneurysm management unless severe pain from rupture occurs. Prophylactic use is inappropriate, as it does not prevent aneurysm complications and may mask symptoms, delaying intervention. Lifestyle measures like avoiding strain are more relevant for prevention.

Choice C reason: Avoiding heavy lifting is critical for clients with an aneurysm, as increased intra-abdominal or thoracic pressure from lifting can elevate blood pressure, risking aneurysm rupture. This lifestyle modification reduces mechanical stress on the aneurysm wall, promoting safety and preventing catastrophic bleeding events.

Choice D reason: Including peanut butter, bread, or tart foods in the diet is unrelated to aneurysm management. Dietary choices do not directly affect aneurysm stability or rupture risk. Blood pressure control and avoiding strain, like heavy lifting, are more critical to prevent aneurysm complications.