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Table 1 Results of the initially ordered laboratory investigations

From: Progressive respiratory distress in a 42-year-old HIV-positive woman with systemic lupus erythematosus

Laboratory parameter Result Reference range
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  
  1. Italics represent abnormal values