Renal Interstitial Invasion by Group A Streptococcus: A Rare Presentation

Table 1

Lab work at admission and upon recovery.

Lab tests with normal ranges in parenthesis	On admission	Upon recovery
C-reactive protein (0.0–1.0 mg/dl)	42.1	0.9
Procalcitonin (<0.1 ng/ml)	>100	0.22
Complete blood count	WBC 34.8	WBC 12.6
WBC (5–15 10E9/L)	HGB 11.0	HGB 8.9
HGB (11.5–13 g/dL)	HCT 29.1	HCT 25.9
HCT (34%–39%)	PLT 169	PLT 370
Platelet 250–550 10E9/L)
Iron (45–160 μg/dL)	<5	26
TIBC (228–428 μg/dL)	139	206
% Saturation (9–55%)	4	13
Ferritin (12–133 ng/ml)	946	545
Serum IL-2R (</ = 2,126 U/mL)	20417	2489
Triglyceride (0–74 mg/dl)	596	147
Fibrinogen (150–410 mg/dl)	509.5	319.7
Blood and urine culture	Positive for group A Streptococcus
Kidney biopsy	Gram-positive cocci in chains
Epstein barr virus PCR	Negative
ANA	Negative
C3 (77–143 mg/dl)	61
C4 (7–40 mg/dl)	4
SARS-CoV-2 PCR	Negative