Research Article
Evaluating Compliance with Institutional Preoperative Testing Guidelines for Minimal-Risk Patients Undergoing Elective Surgery
Table 2
Results of noncompliant testing.
| | Tests | Number of noncompliance tests | Number of abnormal findings (%*) | Reference range | Range of abnormality (<lower limit) | Range of abnormality (>upper limit) |
| | BUN (mg/dL) | 976 | 80 (8.0) | 7–20 | 6–6.9 | 20.1–31.1 | | Cr (mg/dL) | 976 | 44 (4.5) | 0.5–1.5 | 0.2–0.4 | — | | Electrolyte | | | | | | | Na (mmol/L) | 897 | 45 (5.0) | 135–145 | 130–134 | 146–149 | | K (mmol/L) | 897 | 55 (6.1) | 3.5–5.0 | 3–3.4 | 5.1–5.2 | | Cl (mmol/L) | 897 | 106 (11.8) | 98–107 | 93–97 | 108–118 | | HCO3 (mmol/L) | 897 | 112 (12.4) | 22–29 | 17–21 | 30–34 | | BS (mg/dL) | 379 | 76 (20.5) | 74–100 | 68–72 | 101–232 | | Albumin (g/dL) | 115 | 5 (4.3) | 3.5–5.5 | — | 3–3.4 | | PT (seconds) | 60 | 4 (6.6) | 10.5–13.5 | 10.2–10.4 | 14-15 | | APTT (seconds) | 60 | 12 (20) | 24–32 | 16.4–23.9 | — |
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BUN: blood urea nitrogen; Cr: creatinine; Na: sodium; K: potassium; Cl: chloride; BS: blood glucose; PT: prothrombin time; APTT: activated thromboplastin time; %*: among patients with specific tests.
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