Correct Answer: D

Rationale: The correct answer is D because maternal stress can indeed lead to low birth weight, increase the risk of preterm labor, and affect brain development in the fetus. Stress hormones can interfere with the placental function, affecting the transfer of nutrients to the fetus and leading to low birth weight. Stress can also trigger early contractions, potentially resulting in preterm labor. Furthermore, maternal stress can impact fetal brain development through the release of stress hormones that can alter the development of the fetal brain structures. Therefore, all of the choices (A, B, and C) are correct in demonstrating the impact of maternal stress on fetal development.

Correct Answer: A

Rationale: The correct answer is A: Temperature > 102°F. A high fever in the context of right lower quadrant colicky pain raises concern for ureteral colic, which is often caused by kidney stones. Fever may indicate infection or obstruction, requiring urgent medical attention. Choices B, C, and D are incorrect because they are common findings in cases of ureteral colic but are not as specific to raise the index of suspicion. White blood cell count elevation and hematuria are common with kidney stones, while vomiting is a common symptom due to severe pain. However, fever is a more concerning sign that necessitates prompt evaluation.

Correct Answer: B

Rationale: The correct answer is B: Acute epidural hematoma. A crescent-shaped fluid collection seen on a head CT scan following trauma is indicative of an epidural hematoma, which typically occurs due to an arterial bleed between the dura mater and the skull. This collection appears biconvex due to the restriction of the hematoma by the dura mater and is often associated with a lucid interval followed by rapid deterioration. Explanation for Incorrect Choices: A: Acute subdural hematoma typically presents as a crescent-shaped collection but is located between the dura mater and arachnoid mater, not between the dura mater and skull as seen in epidural hematomas. C: Acute uncal herniation involves displacement of the uncus of the temporal lobe, leading to compression of the brainstem, but it does not manifest as a crescent-shaped fluid collection. D: Acute brainstem compression does not typically present as a distinct crescent-shaped

Correct Answer: C

Rationale: The correct answer is C: Local anesthesia, cleansing, and suture repair. 1. Local anesthesia is needed to minimize pain during the procedure. 2. Cleansing is crucial to remove contaminants and reduce the risk of infection. 3. Suture repair is necessary for a jagged laceration of this size to promote proper wound healing and minimize scarring. Summary of other choices: A: Antibiotic therapy is not routinely needed for clean lacerations, and covering alone may not provide adequate wound closure. B: While wound exploration for foreign bodies is important, it is not the immediate priority for this patient with an open, flapping laceration. D: While cleansing, covering, and tetanus prophylaxis are important, antibiotic therapy is not routinely needed for clean lacerations.

Correct Answer: B

Rationale: The correct answer is B: Facilitation of weight gain. A thermal controlled environment for a low birth weight baby helps in maintaining the baby's body temperature, reducing energy expenditure, and promoting weight gain. This is crucial for the baby's growth and development. Incorrect choices: A: Prevention of infection - While a thermal controlled environment can indirectly help prevent infections by maintaining the baby's health, it is not the primary aim. C: Provision of quality care - Quality care involves multiple aspects beyond just thermal control, so this is not the primary aim. D: Provision of nutrition - Nutrition is important for weight gain, but the thermal controlled environment specifically focuses on regulating the baby's body temperature to support weight gain.