1. Neonatal hypocalcemia is typically defined as a total serum calcium level below:
2. Early-onset neonatal hypocalcemia typically occurs within the first:
3. Late-onset neonatal hypocalcemia is most commonly associated with:
4. The most common cause of early-onset hypocalcemia in neonates is:
5. A term infant born to a mother with which condition is at a particularly high risk for early-onset hypocalcemia?
6. Which of the following is a classic symptom of neuromuscular excitability in neonatal hypocalcemia?
7. A severe and life-threatening manifestation of neonatal hypocalcemia is:
8. The characteristic ECG finding in a neonate with hypocalcemia is:
9. Hypocalcemia often coexists with, and can be resistant to treatment without correction of, which other electrolyte abnormality?
10. The biologically active form of calcium in the blood is:
11. For a neonate presenting with seizures due to hypocalcemia, the immediate treatment of choice is:
12. A critical precaution during the administration of intravenous calcium gluconate is:
13. Rapid infusion of intravenous calcium can lead to which of the following adverse effects?
14. Hypocalcemia in neonates with DiGeorge syndrome (22q11.2 deletion) is primarily caused by:
15. The mechanism by which maternal diabetes leads to neonatal hypocalcemia involves:
16. The gold standard for assessing calcium status in a critically ill neonate is:
17. Chvostek’s sign, although not highly reliable in neonates, involves tapping over which nerve?
18. What is the primary role of Vitamin D in calcium homeostasis?
19. In cases of asymptomatic hypocalcemia, what is the preferred management strategy?
20. Parathyroid hormone (PTH) increases serum calcium by all the following mechanisms EXCEPT:
21. Perinatal asphyxia contributes to hypocalcemia primarily through:
22. Prophylactic calcium supplementation is often considered for which group of neonates?
23. Extravasation of IV calcium is a serious complication that can cause:
24. What is the expected serum phosphate level in late-onset hypocalcemia due to high phosphate formula?
25. A neonate presenting with jitteriness, a total calcium of 7.5 mg/dL, and a magnesium level of 1.2 mg/dL should first receive:
