A 5-year-old boy presents with colicky abdominal pain, bilious vomiting, and distension. Abdominal X-ray reveals air-fluid levels consistent with small bowel obstruction. At surgery, a fibrous band is found connecting the ileum to the umbilicus, with a blind-ending pouch along the antimesenteric border. Which embryologic structure failed to involute?

A 28-year-old G1P0 woman delivers a 29-week male infant via emergency cesarean section for placental abruption. She did not receive antenatal corticosteroids, and there was no evidence of infection or congenital anomalies. Within minutes, the neonate develops tachypnea, nasal flaring, intercostal retractions, and grunting. Chest X-ray shows a reticulogranular pattern with air bronchograms. Which of the following best explains the infant’s high risk for developing RDS?

A 3-year-old boy presents with urinary obstruction and hematuria. Cystoscopy reveals a bulging intraluminal mass arising from the bladder wall. The mass is excised and described grossly as soft, tan-pink, and myxoid, with focal hemorrhage. Which of the following tumors is most consistent with this presentation?

Order: 1500 mL of D5½NS to infuse over 10 hours. What is the IV flow rate in mL/hr? (Round to the nearest whole number.)

Acetaminophen 240 mg is ordered for a child weighing 18 kg every 4 hours PRN for fever. The recommended dose is 10–15 mg/kg/dose. Recommended minimum single dose for this child: mg/dose Recommended maximum single dose for this child: mg/dose Is the ordered dosage safe?

What is the abbreviation commonly used for “shortness of breath”?

A digoxin loading dose is ordered: 0.125 mg IV q8h for 3 doses. The ampule reads 0.25 mg/mL. How many mL will be given per dose?

What is the medical abbreviation for the instruction “before meals”?

A nurse is ordered to administer magnesium sulfate at 1.5 g/hr. The solution contains 20 g in 500 mL D5W. At what rate should the IV pump be set in mL/hr? (Round to the nearest tenth.)

When you are frustrated about the course, you will…