Table 2.

Laboratory abnormalities in 3 patients treated for TMA following IV abuse of extended-release oxymorphone

Patient 1Patient 2Patient 3
Test resultPresentationPeak or nadirPresentationPeak or nadirPresentationPeak or nadir
WBC, 4.5-11 × 109/L 12.6 12.8 23.3 30.2 WNL WNL 
Hemoglobin, 13.5-17.5 g/dL 11.2 9.9 7.7 4.7 7.7 6.9 
Hematocrit, 35%-50% 31.9 27.8 22.8 14.3 23.3 20.4 
Platelet count, 150-450 × 109/L 43 41 18 13 20 20 
Creatinine, 0.6-1.3 mg/dL WNL WNL 2.2 5.3 1.6 1.7 
LDH, 140-280 U/L 1507 1507 1981 4418 2584 2854 
Haptoglobin, 30-200 mg/dL Undetectable  Undetectable  Undetectable  
ADAMTS13 66%  64%  ND  
D-dimer, ≤0.5 µg/mL 0.97 0.97 ND  ND  
C3, 88-252 mg/dL 45 44 WNL 22 73 69 
C4, 12-75 mg/dL WNL 10 
CH-50, 31-60 U/mL 24 24 WNL 13 WNL WNL 
Troponin I, <0.01 ng/mL 6.14 6.14 4.95 27.2 12.83 22.53 
Hepatitis B antibody Negative  Negative  Negative  
Hepatitis C antibody 13.73  Negative  Negative  
Echocardiography EF 55% EF 30%, mild RV and LV dilation EF 20%, global hypokinesis, moderate RA dilation 
Patient 1Patient 2Patient 3
Test resultPresentationPeak or nadirPresentationPeak or nadirPresentationPeak or nadir
WBC, 4.5-11 × 109/L 12.6 12.8 23.3 30.2 WNL WNL 
Hemoglobin, 13.5-17.5 g/dL 11.2 9.9 7.7 4.7 7.7 6.9 
Hematocrit, 35%-50% 31.9 27.8 22.8 14.3 23.3 20.4 
Platelet count, 150-450 × 109/L 43 41 18 13 20 20 
Creatinine, 0.6-1.3 mg/dL WNL WNL 2.2 5.3 1.6 1.7 
LDH, 140-280 U/L 1507 1507 1981 4418 2584 2854 
Haptoglobin, 30-200 mg/dL Undetectable  Undetectable  Undetectable  
ADAMTS13 66%  64%  ND  
D-dimer, ≤0.5 µg/mL 0.97 0.97 ND  ND  
C3, 88-252 mg/dL 45 44 WNL 22 73 69 
C4, 12-75 mg/dL WNL 10 
CH-50, 31-60 U/mL 24 24 WNL 13 WNL WNL 
Troponin I, <0.01 ng/mL 6.14 6.14 4.95 27.2 12.83 22.53 
Hepatitis B antibody Negative  Negative  Negative  
Hepatitis C antibody 13.73  Negative  Negative  
Echocardiography EF 55% EF 30%, mild RV and LV dilation EF 20%, global hypokinesis, moderate RA dilation 

EF, left ventricular ejection fraction; LV, left ventricular; ND, not determined; RA, right atrial; RV, right ventricular; WNL, result within reference range.

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