Correct Answer: A

Rationale: The best way to manage a patient's intake of dietary fiber is to increase it gradually. This approach helps prevent gastrointestinal discomfort that may arise from a sudden increase in fiber intake. Choice B is incorrect because increasing intake suddenly can lead to digestive issues. Choice C is incorrect as decreasing fiber intake abruptly may not be necessary and can impact overall health. Choice D is incorrect as maintaining a high intake without considering the patient's current intake level can also cause digestive problems.

Correct Answer: B

Rationale: The correct action for the nurse to take when there is a pause after the machine is activated during synchronized cardioversion is to shout "all clear" and ensure that no one is touching the client or the bed to prevent them from being shocked. This step is crucial for the safety of everyone present during the procedure. Choices A, C, and D are incorrect because waiting without confirming safety, focusing on the client's condition only, or increasing joules without safety precautions can lead to potential harm or injury.

Correct Answer: B

Rationale: The correct action for the nurse to take when there is a pause after activating the machine for synchronized cardioversion on a client in atrial fibrillation is to shout "all clear" and not touch the bed. This step is crucial to ensure the safety of everyone present by warning them that the machine will discharge, preventing anyone from being inadvertently shocked. Waiting for the machine to discharge (choice A) is not recommended as it can lead to accidental injury. While ensuring the client is all right (choice C) is important, the immediate focus should be on safety during the procedure. Increasing the joules and re-discharging (choice D) without assessing the situation can pose risks to the client and the healthcare team.

Correct Answer: A

Rationale: The correct characteristics of anthrax are that cutaneous anthrax causes black eschar lesions, and flu-like symptoms are typical of pulmonary anthrax. Choice B is incorrect because it only includes information about cutaneous anthrax lesions but doesn't cover the flu-like symptoms of pulmonary anthrax. Choice C is incorrect as gastrointestinal anthrax does not cause 'blood anthrax,' it causes symptoms like severe abdominal pain, vomiting, and diarrhea. Choice D is incorrect as flu-like symptoms are associated with pulmonary anthrax, not with gastrointestinal anthrax.

Correct Answer: C

Rationale: Norepinephrine is indeed secreted by the adrenal medulla, making choice C the correct answer. The adrenal medulla is part of the adrenal glands, located on top of the kidneys. Norepinephrine is involved in the body's 'fight or flight' response, helping to prepare the body to react to stress. Choices A, B, and D are incorrect as norepinephrine is not secreted by the pancreas, adrenal cortex, or the anterior pituitary gland.