Correct Answer: A

Rationale: It is normal for the stools to appear black when a patient is taking iron, and the patient should not call the health care provider about this.

Correct Answer: D

Rationale: The correct answer is D, Absolute neutrophil count. Filgrastim (Neupogen) works by stimulating the production and function of neutrophils. Therefore, monitoring the Absolute neutrophil count is crucial to assess the effectiveness of filgrastim in increasing neutrophil levels. Choices A, B, and C are incorrect because platelet count, reticulocyte count, and total lymphocyte count do not directly reflect the effectiveness of filgrastim in increasing neutrophils, which are essential in fighting infections during chemotherapy.

Correct Answer: B

Rationale: In severe hemolytic anemia, the priority nursing intervention is to alternate periods of rest and activity. This approach helps to balance activity levels to prevent excessive fatigue while promoting mobility and preventing complications such as muscle weakness or deconditioning. Providing a diet high in vitamin K (choice A) is not directly related to managing hemolytic anemia. Teaching the patient how to avoid injury (choice C) is important but may not be the immediate priority. Placing the patient on protective isolation (choice D) is not indicated for hemolytic anemia, as it is not a contagious condition.

Correct Answer: A

Rationale: The correct answer is A. A 2-cm nontender supraclavicular node is of most concern because enlarged and nontender nodes in this area are highly suggestive of malignancies such as lymphoma. Choice B is less concerning as a 1-cm mobile and nontender axillary node is usually benign. Choice C, an inability to palpate any superficial lymph nodes, could be due to factors like obesity or edema, but it is not necessarily a cause for immediate concern. Choice D, firm inguinal nodes in a patient with an infected foot, may indicate a local reaction to infection rather than a systemic issue related to malignancy.

Correct Answer: C

Rationale: The patient¢â‚¬â„¢s clinical manifestations are consistent with a febrile, nonhemolytic transfusion reaction. The transfusion should be stopped and antipyretics administered for the fever as ordered.