Correct Answer: A

Rationale: The correct answer is A: Symptom are absent and abnormal specific laboratory results. Chemical diabetes mellitus refers to a condition where there are abnormal specific laboratory results indicating diabetes without the presence of any symptoms. This classification is based on objective data from laboratory tests rather than subjective symptoms. Choices B, C, and D are incorrect as they do not align with the definition of chemical diabetes mellitus, which focuses on laboratory results rather than symptoms, congenital abnormalities, or pregnancy outcomes.

Correct Answer: B

Rationale: The correct answer is B: Transient rebound release of remaining pituitary hormones. After surgical removal of the ACTH-producing pituitary tumor in Cushing's syndrome, there may be a transient rebound release of remaining pituitary hormones due to relief of negative feedback from the tumor. This can lead to a temporary increase in pituitary hormone levels before normalization. Rationale: 1. Rapid reversal of symptoms with good pituitary function (Choice A) is less likely as it takes time for the pituitary gland to recover and resume normal hormone production post-surgery. 2. Markedly improved dexamethasone suppression test (Choice C) is not expected immediately after surgery as it may take time for the hypothalamic-pituitary-adrenal axis to normalize. 3. Hyponatremia and compensatory SIADH (Choice D) are unlikely post-operatively in Cushing's syndrome as removal of the ACTH-producing tumor should lead to normalization of

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: The correct answer is D: Check the neonate’s vital signs every 2-4 hourly. This is the priority action because neonates undergoing phototherapy are at risk for dehydration and temperature instability. Monitoring vital signs regularly helps to detect any signs of dehydration, such as decreased urine output or increased heart rate, and ensures timely intervention. Explanation for other choices: A: Turning the neonate every six hours routinely is important for preventing pressure ulcers but is not the priority when compared to monitoring vital signs for potential complications. B: Encouraging the mother to discontinue breastfeeding is incorrect as breastmilk provides essential nutrients and hydration, which are important for neonates, even during phototherapy. C: Notifying the physician if the skin turns bronze-colored is important to address a potential adverse reaction to phototherapy but does not take precedence over monitoring vital signs for immediate concerns.

Correct Answer: A

Rationale: The correct answer is A: Six hours postnatally. Cephalohematoma is a collection of blood between a baby's skull and the periosteum. It typically appears several hours after birth due to trauma during delivery, causing bleeding under the periosteum. This allows time for the blood to accumulate and form a distinct swelling, making the onset around six hours postnatally. Choices B, C, and D are incorrect as they do not align with the typical timeline for the development of cephalohematoma.