Table 1 Results of the initially ordered laboratory investigations

White cell count

10.5 × 10⁹/L

4.0–11.0 × 10⁹/L

Hemoglobin

12.4 g/dL

11.5–16.5 g/dL

Platelets

330 × 10⁹/L

150–400 × 10⁹/L

Lactate dehydrogenase

494 IU/L

240–480 IU/L

Liver function tests

Normal

Renal function tests

Normal

Thyroid function tests

Normal

Sputum microbiology

Negative

Urine microbiology

Negative

INR

1.3

2.0–4.0

Serum ACE levels

24.03 U/L

9.0–55.0 U/L

Serum ionized calcium

9.10 mg/dL

8.1–10.4 mg/dL

CD4 count

639 cells/µL

500–1200 cells/µL

ANA+

1:100 and 1:200

Anti-dsDNA

37.6 U/mL

<20 U/mL

CRP

89 mg/dL

<10 mg/dL

D-dimers

2600 ng/mL

<500 ng/mL

Anti B2 glycoprotein 1

Negative

Lupus anticoagulant

Negative

Anti-cardiolipin

Negative