Correct Answer: A

Rationale: The correct answer is A: Serum glucose level. In Cushing's disease, there is an excess production of cortisol, leading to hyperglycemia. This results in an increase in serum glucose levels. Choices B, C, and D are incorrect because Cushing's disease does not directly affect serum calcium levels, lymphocyte count, or serum potassium levels.

Correct Answer: D

Rationale: The correct answer is D because it accurately transcribes the prescription by specifying the medication (Potassium chloride), the dose (20 mEq), the route (PO for by mouth), and the frequency (every morning). Choice A is incorrect as it specifies a lower dose compared to the correct prescription. Choice B is incorrect due to an inaccurate dose. Choice C is incorrect as it lacks specificity regarding the type of potassium prescribed and the dose.

Correct Answer: A

Rationale: The correct answer is A. Systolic heart failure is characterized by reduced ejection fraction, meaning the heart is not pumping effectively. Diastolic heart failure, on the other hand, is characterized by preserved ejection fraction, indicating that the heart has difficulty relaxing and filling properly. Choices B, C, and D are incorrect because they do not accurately describe the key differences between systolic and diastolic heart failure.

Correct Answer: B

Rationale: The correct action for the nurse to take is to report the client's decision to the provider who obtained informed consent. This ensures that the provider is informed of the client's change in decision and can discuss the situation further with the client. Choice A is incorrect as ignoring the client's decision is not appropriate and goes against the principles of patient autonomy. Choice C is incorrect because involving the family in convincing the client can be coercive and may not respect the client's autonomy. Choice D is incorrect because the nurse should not re-sign the informed consent form without the client's consent and a discussion with the provider.

Correct Answer: B

Rationale: Performing a fundal massage is the priority action in a postpartum client experiencing excessive lochia discharge. Fundal massage helps prevent postpartum hemorrhage by ensuring the uterus contracts effectively. Administering pain medication, checking the baby's heart rate, and applying an ice pack are not the initial interventions needed to address excessive lochia discharge.