What piece of extra equipment is important for a resident using an oxygen concentrator?

Correct Answer: D

Rationale: The correct answer is D: Nasal cannula. A resident using an oxygen concentrator needs a nasal cannula to deliver the concentrated oxygen directly to their nostrils for breathing. The nasal cannula is essential for effective oxygen therapy and ensures the resident receives the prescribed amount of oxygen. A: Portable oxygen tank is not necessary when using an oxygen concentrator as it generates oxygen continuously. B: Irrigation catheter is not relevant to oxygen therapy and serves a different medical purpose. C: Specimen container is used for collecting samples and has no connection to oxygen therapy. In summary, the nasal cannula is crucial for delivering oxygen, while the other choices are not related to oxygen therapy.

Correct Answer: D

Rationale: Step-by-step rationale: 1. Male testes are responsible for producing male sex hormones. 2. Testosterone is the primary male sex hormone secreted by the testes. 3. Testosterone plays a crucial role in male reproductive functions. 4. Potassium, Progesterone, and Epinephrine are not hormones secreted by the male testes. Summary: - A: Potassium is an electrolyte, not a hormone secreted by the testes. - B: Progesterone is a female sex hormone, not secreted by the male testes. - C: Epinephrine is a stress hormone, not secreted by the male testes. Therefore, the correct answer is D: Testosterone, as it is the hormone secreted by the male testes and is essential for male reproductive functions.

Correct Answer: B

Rationale: The correct answer is B: A reduced chance of pneumonia. Regular activity and exercise help improve respiratory function by strengthening the lungs and improving overall lung capacity. This reduces the likelihood of respiratory infections such as pneumonia. Increased physical activity also helps to boost the immune system, further lowering the risk of infections. Choices A, C, and D are incorrect because regular activity and exercise actually have the opposite effects: they decrease the chance of infection, improve oxygen levels, and enhance circulation in the body.

Correct Answer: C

Rationale: The correct answer is C: Jaw dropping. Following death, muscles in the body relax, including the muscles that control the jaw. As a result, the jaw may drop open in a relaxed position. This is a common physical sign that caregivers may observe post-mortem. This phenomenon occurs due to the loss of muscle tone and is a natural occurrence in the process of death. Incorrect options: A: Low blood pressure is not a visible physical change that a caregiver may see externally following death. B: High fever is not a typical symptom observed after death but rather a sign of infection or other medical conditions. D: Perspiration is unlikely to occur after death as the body's functions cease, including sweating.

Correct Answer: B

Rationale: The correct answer is B because it indicates a misconception about postoperative pain management. Anesthesia wears off, and patients typically experience some level of pain after surgery. This statement suggests the patient may not be prepared for or expecting postoperative pain. A, C, and D are incorrect: A: Indicates understanding of pain assessment using a pain scale. C: Demonstrates understanding of following the provider's instructions for pain medication. D: Shows knowledge of the importance of taking pain medication before engaging in postoperative exercises to manage pain effectively.