Correct Answer: B

Rationale: The correct answer is B because turning off the television is necessary for effective learning and communication between the nurse preceptor and student nurse. Watching TV can be distracting and disrespectful during the learning process. Choices A, C, and D are incorrect because chewing gum, speaking clearly and loudly, and using at least 14-point print are behaviors that do not hinder the learning process and can be acceptable in a professional setting.

Correct Answer: B

Rationale: Step 1: Immunotherapy injections can cause allergic reactions. Step 2: Monitoring post-injection is crucial to detect and manage any potential adverse reactions promptly. Step 3: Staying in the clinic for 30 minutes allows for immediate intervention if needed. Step 4: This ensures patient safety and reduces the risk of severe reactions. Summary: A: Epinephrine is not typically given before immunotherapy injections. C: Therapeutic response may take longer than 3 months to show. D: Immunotherapy is usually given via subcutaneous route, not intravenous.

Correct Answer: B

Rationale: The correct answer is B: Total placenta previa. In this condition, the placenta completely covers the cervix, posing a risk of severe bleeding during vaginal delivery. Cesarean birth is necessary to avoid potential life-threatening complications for both the mother and the baby. Partial abruptio placentae (choice A) involves premature separation of the placenta, but it doesn't always require a cesarean birth. Ectopic pregnancy (choice C) occurs when the fertilized egg implants outside the uterus, typically requiring surgical intervention but not always a cesarean birth. Eclampsia (choice D) is a serious condition characterized by high blood pressure and seizures, but it doesn't always necessitate cesarean birth unless there are other complications that require it.

Correct Answer: B

Rationale: The nurse sitting at the patient's bedside is using the personal zone of personal space, which ranges from 18 inches to 4 feet. This distance allows for a close interaction suitable for taking a nursing history while maintaining a professional yet personal connection. The socio-consultative zone (A) is 4-12 feet, more appropriate for professional interactions. The intimate zone (C) is 0-18 inches, too close for an initial nursing history. The public zone (D) is 12 feet or more, too distant for a personal conversation.

Correct Answer: C

Rationale: The correct answer is C. Cholesteatomas are often the result of chronic otitis media. Chronic otitis media can lead to the formation of cholesteatomas, which are noncancerous but can cause complications if left untreated. Cholesteatomas do not resolve spontaneously (A), are not the result of metastasis (B), do not typically cause intractable neuropathic pain (D), and usually require surgical removal to prevent complications (E). Therefore, educating the patient about the association between chronic otitis media and cholesteatoma is essential for understanding the diagnosis and potential treatment options.