Correct Answer: B

Rationale: In the scenario of a needle puncture requiring HIV prophylaxis, the CDC recommends initiating treatment with two non-nucleoside reverse transcriptase inhibitors, unless there is drug resistance. This regimen is preferred over other options such as a single protease inhibitor or two protease inhibitors due to its effectiveness and safety profile in this specific context. Non-nucleoside reverse transcriptase inhibitors are commonly used in post-exposure prophylaxis due to their activity against HIV and lower risk of resistance development compared to other antiretroviral drug classes.

Correct Answer: C

Rationale: The correct answer is 6 liters/minute. When a client needs oxygen therapy, the highest flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Higher flow rates must be delivered by a mask. Choices A, B, and D are incorrect because they suggest flow rates that exceed what can be effectively delivered through a nasal cannula.

Correct Answer: B

Rationale: Attaching a restraint to a movable part of the bed can lead to client injury if that part of the bed is moved before releasing restraints. This could result in the client getting caught or trapped, possibly causing harm. Choices C and D are incorrect because attaching restraints to movable parts of the bed is not intended to help the client stay in bed or improve posture; rather, it poses a risk of injury. Choice A is incorrect as it does not address the potential harm associated with using restraints on movable parts of the bed.

Correct Answer: B

Rationale: The correct answer is B: Eclampsia. Eclampsia is a disorder of pregnancy characterized by hypertension, proteinuria, and edema. This condition can cause seizures and/or coma but does not typically present with vaginal bleeding. Choices A, C, and D are abnormal conditions that can cause bleeding, particularly in the third trimester. Placenta previa (choice A) is a condition where the placenta partially or completely covers the cervix, leading to vaginal bleeding. Abruptio placentae (choice C) is the premature separation of the placenta from the uterine wall, causing vaginal bleeding. Uterine rupture (choice D) is a serious obstetrical emergency where the uterus tears during pregnancy or childbirth, resulting in severe bleeding.

Correct Answer: A

Rationale: The correct answer is high HDL cholesterol. High HDL cholesterol levels are associated with a decreased risk of cardiovascular disease because HDL helps remove LDL cholesterol from the arteries, reducing plaque buildup. Low HDL cholesterol (choice B) is actually associated with an increased risk of cardiovascular disease. Low total cholesterol (choice C) or low triglycerides (choice D) are not indicators of a decreased risk of cardiovascular disease; in fact, extremely low total cholesterol levels may indicate other health issues.