Correct Answer: B

Rationale: The correct answer is B. In chronic anemia, the hematocrit (Hct) value is a crucial indicator of the proportion of red blood cells in the blood. A hematocrit value of 38% indicates a lower than normal level of red blood cells, which aligns with the patient's symptoms of fatigue and palpitations.

Choices A, C, and D are incorrect because a low RBC count, normal RBC indices, and a hemoglobin level of 8.6 g/dL do not specifically address the decreased red blood cell mass associated with chronic anemia.

Correct Answer: D

Rationale: The correct answer is D. After a splenectomy, the patient is at an increased risk of infection, particularly from gram-positive bacteria. Washing hands and avoiding contact with individuals who are ill are crucial to reduce this risk.
Choice A is incorrect because checking for swollen lymph nodes is not a priority after a splenectomy.
Choice B is incorrect as while bleeding is a concern, it is more immediate post-operatively.
Choice C is incorrect as iron supplements do not specifically relate to the risk of infection post-splenectomy.

Correct Answer: A

Rationale: The correct answer is A. Platelet transfusions are not usually indicated until the platelet count is below 10,000 to 20,000/µL unless the patient is actively bleeding. In this scenario, the platelet count of 42,000/µL is not significantly low to warrant a platelet transfusion without active bleeding. Consulting with the healthcare provider is essential before giving the transfusion to ensure the appropriateness of the treatment.

Choices B, C, and D are not directly related to the need for consulting before a platelet transfusion. Petechiae, low blood pressure, and oozing from the venipuncture site are common findings in patients with ITP and may not necessarily contraindicate a platelet transfusion at this platelet count.

Correct Answer: B

Rationale: The correct answer is B: 'Check temperature every 4 hours.' Neutropenic patients have a weakened immune system due to low levels of neutrophils, which are a type of white blood cell that helps fight infections. Monitoring the patient's temperature every 4 hours is crucial because the earliest sign of infection in a neutropenic patient is often a fever. This allows for early detection of any potential infections.

Choices A, C, and D are incorrect because avoiding intramuscular injections, omitting fruits or vegetables from the diet, and placing a 'No Visitors' sign on the door are not specific actions directly related to managing neutropenia or monitoring for signs of infection.

Correct Answer: B

Rationale: The correct answer is B because a neutropenic patient with a fever is at high risk for developing sepsis. Sepsis can progress rapidly and lead to life-threatening complications. Immediate assessment, obtaining cultures, and initiating antibiotic therapy are essential in this situation.

Choices A, C, and D do not present with the same level of urgency as a neutropenic patient with a fever. Abdominal pain in a hemochromatosis patient, oozing gums after a tooth extraction in a thrombocytopenic patient, and nausea and diarrhea in a patient with sickle cell anemia, while concerning, do not indicate the same immediate risk of sepsis as a neutropenic patient with a fever.