27 May 2021
: Case report 
An Unusual Case of Hashimoto’s Thyroiditis Presenting as Impending Cardiac Tamponade in a Patient with Acquired Immune Deficiency Syndrome (AIDS)
Challenging differential diagnosis, Management of emergency care, Educational Purpose (only if useful for a systematic review or synthesis), Rare coexistence of disease or pathology
Ryan B. Sinit1AEF, Janet H. Leung23BD, Wayne S. Hwang4BDEF, J. Susie Woo4BD, David M. Aboulafia15ABDEF*DOI: 10.12659/AJCR.929249
Am J Case Rep 2021; 22:e929249
Table 2. Laboratory tests used to determine etiology of impending cardiac tamponade.
| Result | Reference range | |
|---|---|---|
| IgM | Non-reactive | N/A |
| ANA | Non-reactive | N/A |
| C3 complement | 32 mg/dL | 82–185 mg/dL |
| C4 complement | 3 mg/dL | 15–53 mg/dL |
| PT | 13 seconds | 11.8–13.3 seconds |
| INR | 1.0 | <1.1 |
| ESR | 43 mm/hr | <26 mm/hr |
| CRP | 6.1 mg/L | <7.9 mg/L |
| Ferritin | 112 ng/mL | 31–356 ng/mL |
| TSH | 108 mIU/L | 0.35–4.94 mIU/L |
| Free T4 | <0.50 ng/dL | 0.70–1.48 ng/dL |
| Free T3 | <1.5 pg/mL | 1.7–3.7 pg/mL |
| Reverse T3 | <2.0 ng/dL | 10–24 ng/dL |
| TPO antibody | 598.5 IU/mL | ≤8.9 IU/mL |
| Total testosterone | 240 ng/dL | 240–950 ng/dL |
| Free testosterone | 3.12 ng/dL | 4.06–15.6 ng/dL |
| Bioavailable testosterone | 29 mg/dL | 50–190 ng/dL |
| ANA – antinuclear antibody; CRP – C-reactive protein; ESR – erythrocyte sedimentation rate; IgM – immunoglobulin M; INR – international normalized ratio; – ; N/A – not applicable; PT – prothrombin time; T4 – thyroxine; TPO – thyroid peroxidase; TSH – thyroid stimulating hormone. | ||