Correct Answer: A

Rationale: Extreme fatigue can be a sign of digitalis toxicity, especially in older adults, and warrants a review of the client's medication levels and potential adjustment. Increased appetite, intense itching, and constipation are not typically associated with digitalis toxicity and do not directly indicate a need for a review of digitalis levels.

Correct Answer: C

Rationale: The correct pathway of blood flow through the heart starts with blood entering the right atrium, moving to the right ventricle, then to the lungs for oxygenation, returning to the left atrium, and finally to the left ventricle before being pumped out to the body. Option A is incorrect as it starts with the ventricles instead of the atria. Option B is incorrect as it has the sequence of ventricles before atria reversed. Option D is incorrect as it has the atria and ventricles mixed up.

Correct Answer: D

Rationale: The correct answer is D because a 30-month-old should have developed the skill to drink from a regular cup by this age. Drinking from a sip cup at this stage may indicate a delay in development. Choices A, B, and C are not as concerning as they can be within the range of normal development. A 13-month-old not walking yet, a 20-month-old using 2 and 3 word sentences, and a 24-month-old crying during examination are all behaviors that can fall within the spectrum of typical development for their respective ages.

Correct Answer: D

Rationale: The American Diabetes Association (ADA) is a voluntary organization that relies on voluntary contributions and membership fees. NIH (National Institutes of Health), FDA (Food and Drug Administration), and CDC (Centers for Disease Control and Prevention) are governmental agencies and not voluntary organizations. Therefore, the correct answer is D.

Correct Answer: C

Rationale: The correct answer is C: case manager. A case manager in healthcare coordinates care, monitors outcomes, and ensures quality and cost-effectiveness. In this job description, the nurse is mainly focused on coordinating care, recommending treatment plans, monitoring outcomes, and maintaining communication among all involved, which aligns with the responsibilities of a case manager. Choices A, B, and D are incorrect because the job description does not primarily involve general management, research, or health promotion specialization.