Correct Answer: D

Rationale: Step 1: Atony of the uterus is the most common cause of primary postpartum hemorrhage due to inadequate uterine contractions. Step 2: Trauma of the genital tract can lead to bleeding but is not as common as atony of the uterus in postpartum hemorrhage. Step 3: Blood coagulation disorder can contribute to excessive bleeding but is not the primary cause of postpartum hemorrhage. Step 4: Prolonged 3rd stage can result in postpartum hemorrhage but is typically secondary to uterine atony.

Correct Answer: A

Rationale: The correct answer is A because intraperitoneal uterine rupture involves a tear that goes through all layers of the uterus - endometrium, myometrium, and peritoneum. This type of rupture extends beyond the muscular layer of the uterus and into the peritoneal cavity. Choices B, C, and D are incorrect as they do not include the peritoneum, which is a key component of intraperitoneal uterine rupture. Therefore, choice A is the correct answer as it accurately describes the layers involved in this type of rupture.

Correct Answer: A

Rationale: The correct answer is A: Isoproterenol 0.2 to 0.6 mg IV bolus. Isoproterenol is a non-selective beta-adrenergic agonist that can worsen graft rejection in heart transplant patients. The appropriate intervention for bradyarrhythmia in posttransplant patients is external pacemaking or pharmacological agents like atropine or epinephrine. Isoproterenol should be avoided due to its potential to stimulate the immune system and increase the risk of rejection. It is crucial to choose interventions that address the bradycardia without compromising the patient's transplant graft.

Correct Answer: C

Rationale: The correct answer is C: Decompression of the colon with rectal tube. This is the most appropriate intervention for a patient with acute colonic pseudo-obstruction (ACPO), also known as Ogilvie's syndrome. In this condition, there is colonic distention without an actual mechanical obstruction, leading to symptoms like abdominal pain, distention, and high-pitched bowel sounds. Decompression with a rectal tube can help relieve the distention and prevent complications like perforation. Choice A (stimulant laxative) is incorrect because ACPO is not due to simple constipation, so laxatives would not be effective. Choice B (carcinoma of the bowel) is unlikely given the acute onset and lack of risk factors. Choice D (angiography for mesenteric ischemia) is not indicated in this case as there are no signs of acute ischemia. In summary, the correct choice is C because it directly addresses the underlying issue of colonic distention in

Correct Answer: B

Rationale: Correct Answer: B (Managing as an outpatient case) Rationale: 1. Moderate pre-eclampsia indicates stable condition. 2. Outpatient management allows close monitoring without hospitalization. 3. Early intervention can prevent progression to severe pre-eclampsia. 4. Hospital admission is reserved for severe cases or complications (not moderate). 5. Encouraging fluids is important, but not the specific management for pre-eclampsia.