Basic chemistry† | 161 (22.7) | 207 (22.7) | .99 |
Basic hematology‡ | 169 (23.8) | 210 (23.1) | .71 |
Extended chemistry§ | 25 (3.5) | 44 (4.8) | .20 |
ESR and CRP test | 3 (0.4) | 5 (0.5) | .72 |
Blood gas test‖ | 8 (1.1) | 22 (2.4) | .06 |
Coagulation | 38 (5.4) | 42 (4.6) | .49 |
D-dimer assay¶ | 12 (1.7) | 5 (0.5) | .03 |
Pregnancy test# | 31 (4.4) | 30 (3.3) | .26 |
Upper abdomen enzyme test** | 59 (8.3) | 76 (8.3) | .99 |
Cardiac enzyme test†† | 50 (7.1) | 55 (6.0) | .41 |
Urinalysis | 21 (3.0) | 26 (2.9) | .90 |
Urine culture | 48 (6.8) | 59 (6.5) | .81 |
Blood culture | 15 (2.1) | 9 (1.0) | .06 |
Throat culture | 21 (3.0) | 33 (3.6) | .46 |
Stool culture | 7 (1.0) | 4 (0.4) | .18 |
Genital culture‡‡ | 6 (0.8) | 6 (0.7) | .66 |
Urine toxicology§§ | 16 (2.3) | 15 (1.6) | .37 |
Serum toxicology‖‖ | 11 (1.6) | 13 (1.4) | .84 |
Other laboratory examinations¶¶ | 39 (5.5) | 49 (5.4) | .91 |
Plain film x-ray scans | 191 (26.9) | 269 (29.5) | .25 |
CT scans | 13 (1.8) | 44 (4.8) | .0012 |
Ultrasound scans## | 12 (1.7) | 48 (5.3) | < .001 |