Correct Answer: A

Rationale: The correct answer is A: A complete blood count and RBC differential. In this case, Mr. Jefferson presents with severe abdominal pain, which could indicate various conditions like pancreatitis, a possible complication of his heavy drinking. A complete blood count (CBC) with RBC differential can help assess for signs of inflammation or infection, which may be elevated in conditions like pancreatitis. The RBC differential can also provide insights into potential causes of abdominal pain, such as anemia or other blood disorders. Summary: - B: Liver function enzymes may be affected in conditions like alcoholic liver disease, but in this case, the focus should be on investigating acute abdominal pain. - C: Serum amylase, lipase, and glucose are typically checked in cases of suspected pancreatitis, but a CBC with RBC differential would provide a more comprehensive initial assessment. - D: A basic metabolic panel may not directly address the underlying cause of the acute abdominal pain and is not the most appropriate test to anticipate

Correct Answer: A

Rationale: The correct answer is A because an estimated fetal weight below 3500 grams indicates a lower risk of complications during childbirth. Higher fetal weight increases the likelihood of shoulder dystocia and birth injuries. Maternal body mass index, gestational age, and maternal age do not directly impact the likelihood of a favorable outcome during a trial of scar.

Correct Answer: D

Rationale: Step 1: Campylobacter jejuni is a bacteria commonly associated with foodborne illness, often found in undercooked poultry and unpasteurized milk. Step 2: The patient's symptoms and microbiological findings are consistent with Campylobacter infection. Step 3: Advising the patient that there is no readily identified food source of this bacteria is important for preventing future exposure and potential reinfection. Step 4: Choices A, B, and C are incorrect as they do not address the specific educational need related to food safety and prevention of Campylobacter infection.

Correct Answer: B

Rationale: Step 1: Hyperemesis gravidarum is characterized by severe nausea and vomiting during pregnancy. Step 2: Inability to eat or retain food all through is a hallmark feature due to excessive vomiting. Step 3: This leads to dehydration, electrolyte imbalances, and weight loss. Step 4: Pallor, cyanosis, weakness, and smaller fundal height are not specific to hyperemesis gravidarum. Summary: Choice B is correct as it directly relates to the primary symptom of excessive vomiting in hyperemesis gravidarum, while the other choices are not specific to this condition.

Correct Answer: D

Rationale: In True cephalopelvic disproportion, the baby's head is too large to pass through the mother's pelvis. This condition often requires operative delivery (C-section) as a vaginal birth is not possible. Choice D is correct because operative delivery is indeed needed to safely deliver the baby. Choice A is incorrect as not all patients with cephalopelvic disproportion will necessarily require operative delivery. Choice B is also incorrect as the issue cannot generally be overcome during labor due to physical constraints. Choice C is incorrect as operative delivery is usually necessary in cases of true cephalopelvic disproportion to prevent complications.