Table 3.

The Decline in the Patients’ Vitamin D Level Reflects the 15-Day Half-Life of 25(OH)D.

	Labs	Admission	2.5 Weeks	3.5 Months	8 Months
Case 1	25(OH)D ng/Ml	680	288	24.9	38.1
	1,25(OH)2D pg/mL	166	>190	327	48.8
	Labs	Admission	6 Weeks	2.5 Months	3 Months
Case 2	25(OH)D ng/mL	644	106	50.6	30.6
	1,25(OH)2D pg/mL		109