Correct Answer: A

Rationale: The correct answer is A because it follows the correct format of a nursing diagnosis: "Problem related to Etiology." In this case, "Decreased cardiac output" is the problem, and "altered myocardial contractility" is the cause. This format helps identify the specific issue and its underlying cause, allowing for targeted interventions. Choice B is incorrect as it doesn't follow the problem-etiology format and lacks specificity. Choice C is also incorrect as it lacks a clear nursing diagnosis and specific etiology. Choice D is incorrect as it presents a symptom rather than a nursing diagnosis with an associated cause. Overall, choice A is the best option as it provides a clear, specific nursing diagnosis that guides appropriate nursing interventions.

Correct Answer: C

Rationale: The correct initial treatment for stage IV ovarian cancer is major surgery (Choice C). This is because at this advanced stage, surgery is typically performed to debulk the tumor and remove as much cancerous tissue as possible, followed by chemotherapy to target any remaining cancer cells. Radiation therapy (Choice A) is not typically the initial treatment for ovarian cancer. Chemotherapy (Choice B) is often used in combination with surgery, but surgery is usually the first line of treatment for stage IV disease. Choosing no treatment (Choice D) would be detrimental as the cancer is advanced and requires immediate intervention.

Correct Answer: D

Rationale: The correct answer is D: “I will receive parenteral vitamin B12 therapy for the rest of my life.” This statement is correct because pernicious anemia is a lifelong condition requiring ongoing vitamin B12 supplementation. Patients with pernicious anemia lack intrinsic factor, which is needed to absorb vitamin B12 from food. Therefore, they need lifelong B12 therapy to prevent complications such as anemia and neurological damage. Choices A, B, and C are incorrect because they suggest a limited duration of therapy. Pernicious anemia is a chronic condition that necessitates continuous treatment. Choice A implies therapy until signs and symptoms disappear, which may not address the underlying cause of the deficiency. Choice B mentions therapy until vitamin B12 levels normalize, which may not prevent recurrence. Choice C suggests monthly therapy for a fixed period, which may not be sufficient for lifelong management.

Correct Answer: D

Rationale: The correct answer is D: Cryptorchidism. Cryptorchidism, or undescended testicle, is a known risk factor for testicular cancer as the undescended testicle is more prone to developing cancerous changes. This condition increases the risk of testicular cancer even if the testicle is surgically corrected later in life. Other choices like A (Testosterone therapy during childhood) and B (Sexually transmitted disease) are not linked to testicular cancer. Choice C (Early onset of puberty) is not a direct risk factor for testicular cancer.

Correct Answer: B

Rationale: The correct answer is B: Interpersonal. The nurse is using interpersonal skills by establishing trust and communicating with the patient before administering the injection. This helps build rapport and alleviate anxiety. Cognitive skills involve problem-solving and critical thinking, not direct patient interaction. Psychomotor skills relate to physical tasks like giving injections. Judgmental skills involve making decisions based on critical thinking, not directly related to patient communication.