A normal age-related change for the circulatory system is

Correct Answer: A

Rationale: The correct answer is A because as individuals age, the heart muscle may weaken, leading to decreased efficiency in pumping blood. This change is considered normal in the aging process. B: Blood vessels widening is not a typical age-related change, as aging usually leads to decreased elasticity and flexibility in blood vessels. C: While some blood vessels may become less elastic with age, this is not a defining characteristic of normal age-related changes. D: Blood flow typically decreases with age due to various factors such as decreased heart efficiency and narrowing of blood vessels.

Correct Answer: B

Rationale: The correct answer is B: With water. Artificial eyes should be cleaned with water because it is gentle and non-irritating to the delicate materials of the prosthesis. Step-by-step rationale: 1. Rinse the artificial eye with lukewarm water to remove any debris or residue. 2. Gently rub the surface with a soft, clean cloth or your fingertips. 3. Pat dry with a clean, soft towel. Water is the safest and most effective option for cleaning artificial eyes. Alcohol (choice A) can damage the prosthesis, toothpaste (choice C) is abrasive and can scratch the surface, and bleach (choice D) is too harsh and can discolor or degrade the materials.

Correct Answer: A

Rationale: The correct answer is A: Change in diet and daily exercise. Prediabetes can be delayed or prevented by maintaining a healthy lifestyle through proper nutrition and regular physical activity. A balanced diet and exercise help in controlling weight, improving insulin sensitivity, and reducing blood sugar levels. Medication (choice B) may be necessary in some cases but should not be the first-line approach. Surgery (choice C) is not typically recommended for prediabetes. Increasing intake of fluids (choice D) is important for overall health but alone is not sufficient to prevent or delay prediabetes.

Correct Answer: A

Rationale: Passive range of motion exercises are done when a resident cannot move on her own to prevent joint stiffness and contractures. This is important for residents with limited mobility. Choice A is correct because passive exercises involve a caregiver or therapist moving the resident's joints for them. Choice B is incorrect because it refers to active exercises. Choice C is incorrect as it implies the resident is participating actively. Choice D is incorrect because while a doctor or therapist may prescribe exercises, they are not the ones typically performing passive range of motion exercises.

Correct Answer: B

Rationale: The correct answer is B because a cover letter should focus on why the applicant is seeking the job and why they are qualified for it. This helps to personalize the application and demonstrate the applicant's interest and suitability for the position. Providing detailed information about educational background and volunteer work (choice A) can be included in the resume and may not be necessary in the cover letter. Including salary expectations (choice C) is typically discussed during interviews and not appropriate for a cover letter. Recommendations from former employers (choice D) are usually submitted separately or upon request and are not typically included in a cover letter.