Correct Answer: C

Rationale: The correct answer is C. When a patient's level of consciousness declines and becomes unresponsive, it may indicate a potential overdose of analgesics. To ensure patient safety, IV analgesics should be withheld and replaced with transdermal analgesics, which provide a more controlled and gradual release of medication. This switch helps prevent further overdose and adverse effects. Continuing the current pain control regimen (Choice A) may worsen the situation. Placing the pain control regimen on hold (Choice B) may lead to inadequate pain management. Reducing analgesic dosages (Choice D) may not be sufficient in addressing the overdose issue.

Correct Answer: A

Rationale: The correct answer is A: Diabetes. Erectile dysfunction can be caused by organic factors, such as diabetes, which affects blood flow and nerve function. Diabetes can lead to damage of blood vessels and nerves, impacting the ability to achieve and maintain an erection. Testosterone deficiency (choice B) can also contribute to erectile dysfunction, but it is not an organic cause. Anxiety (choice C) and depression (choice D) are psychological factors that can lead to erectile dysfunction, not organic causes. Parkinsonism (choice E) can affect sexual function, but it is not a common organic cause of erectile dysfunction.

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 correct answer is B: Denial of imminent death on the part of the family or the patient. This is a common cause of patient care dilemmas at the end of life because denial can lead to unrealistic expectations, difficulty in making important decisions, and inadequate planning for end-of-life care. This can result in unnecessary suffering for the patient and added stress for the family. Incorrect choices: A: Poor communication between the family and the care team can contribute to challenges in providing appropriate care but may not be the primary cause of patient care dilemmas at the end of life. C: Limited visitation opportunities for friends and family, while important for psychosocial support, may not directly cause patient care dilemmas. D: Conflict between family members can complicate decision-making processes, but it is not necessarily a primary cause of patient care dilemmas at the end of life.

Correct Answer: C

Rationale: The correct answer is C (900 mL) because the weight of 900 g corresponds to a blood loss of the same amount in milliliters. Blood density is close to that of water, so 1 g ≈ 1 mL. Therefore, a blood-soaked peripad weighing 900 g indicates a blood loss of 900 mL. Choice A (1800 mL) is incorrect as it doubles the weight instead of converting it to milliliters. Choice B (450 mL) is incorrect as it halves the weight. Choice D (90 mL) is incorrect as it divides the weight by 10, which is too small for the blood loss indicated.