Transient hyperphosphatasemia in a toddler with COVID-19 infection: A case report and literature review

Table 1 Laboratory tests of our patient during coronavirus disease 2019 infection and follow-up

Parameters	At admission		Follow-up after illness
	5th day of illness	9th day of illness	2nd month	6th month
ALP (U/L)	4178	4662	252	229
AST (U/L)	35.8	30.8	37.7	29.3
ALT (U/L)	17	15.9	16.5	18.8
TP (g/dL)	7.1	6.8	6.7	6.8
Alb (g/dL)	4.9	4.8	4.6	4.6
TB/DB (g/dL)	0.25/0.12	0.17/0.11	0.37/0.12	0.24/0.11
GGT (U/L)	12	-	-	-
Cr (mg/dL)	0.3	-	-	-
Ca (mg/dL)	9.9	-	9.7	-
P (mg/dL)	4.0	-	4.9	-
Mg (mg/dL)	2.2	-	2.26	-
iPTH (pg/mL)	21.3	-	26.4	-
25-OHD (ng/mL)	33.6	-	23.4	-

ALP: Alkaline phosphatase (normal range: 111-277 U/L; AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; TP: Total protein; Alb: Albumin; TB: Total bilirubin; DB: Direct bilirubin; GGT: Gamma-glutamyl transferase; Ca: Calcium; P: Phosphate; Mg: Magnesium; iPTH: Intact parathyroid hormone.