| Age >65 | Albumin, creatinine, hemoglobin |
| Alcohol abuse: | ECG, electrolytes, hemoglobin, LFTs, platelet count, PT/INR |
| Anasarca: | Albumin, BUN, creatinine, ECG, electrolytes, TSH, T3, T4 |
| Anemia: | CBC, creatinine, ferritin, iron, transferrin saturation, TSH, T3, T4, Vit B12 |
| Bleeding disorder (personal or family history): | LFTs, platelet count, PT/INR, PTT |
| Blood loss (anticipated) significant: | Hemoglobin, type and screen |
| BMI <16: | Albumin, ECG, electrolytes, hemoglobin, PT/INR, TSH, T3, T4 |
| BMI >50: | ECG, HgA1c/glucose |
| Cardiac disease: | |
| Arrhythmias (new or undiagnosed brady, irregular, or tachy): | BNP, ECG, electrolytes, hemoglobin, TSH, T3, T4 |
| Chest pain (new or worsening): | BNP, ECG, hemoglobin |
| Heart failure (decompensated or NYHA class 3 or 4): | BNP, chest radiograph, creatinine, ECG, electrolytes, hemoglobin |
| Murmur (undiagnosed): | BNP, ECG |
| Chemotherapy (within last 30 days): | BUN, CBC, creatinine, platelet count |
| CIED (pacemaker, ICD): | ECG |
| Cocaine abuse: | ECG |
| Contrast dye (anticipated use): | Creatinine |
| Diabetes: | Creatinine, HgA1c/glucose |
| Dyspnea (severe and undiagnosed): | Albumin, BNP, BUN, chest radiograph, creatinine, ECG, electrolytes, hemoglobin, TSH, T3, T4 |
| Goiter: | T3, T4, TSH |
| Hematologic disorders (eg, leukemia, myeloma): | CBC, platelet count |
| Hepatic disease: | Albumin, BUN, creatinine, electrolytes, hemoglobin, LFTs, platelet count, PT/INR |
| Hypercoagulable condition (undiagnosed): | Platelet count, PTT |
| Inflammatory bowel disease: | Electrolytes, hemoglobin |
| Instrumentation of the urinary tract: | Urinalysis |
| Malabsorption: | Albumin, BUN, CBC, electrolytes, hemoglobin, PT/INR |
| Malnutrition: | Albumin, BUN, CBC, creatinine, electrolytes, hemoglobin, PT/INR |
| Medications: | |
| Amiodarone use: | ECG, T3, T4, TSH |
| Digoxin: | ECG, electrolytes |
| Diuretics: | Electrolytes |
| Heparin (unfractionated): | PTT |
| Steroids (systemic): | Electrolytes, HgA1c/glucose |
| Thyroid replacement: | TSH, T3, T4 |
| Warfarin: | PT/INR |
| Planned initiation of warfarin for first time in hospital: | PT/INR |
| Palpitations: | ECG, hemoglobin, T3, T4, TSH |
| Positive antibody screen on previous type and screen: | Type and screen (except for procedures with no blood loss potential) |
| Pulmonary disease (eg, cough, severe dyspnea, abnormal findings on chest examination): | Chest radiograph |
| Pulmonary HTN: | ECG |
| Radiation therapy (to chest, breasts, lungs, thorax): | Chest radiograph, ECG |
| Renal disease: | BUN, creatinine, electrolytes, hemoglobin |
| Suspected pregnancy: | B-hCG |
| Syncope: | BNP, creatinine, ECG, electrolytes, hemoglobin, HgA1c/glucose, TSH, T3, T4 |
| Thyroid disease: | TSH, T3, T4 |
| Tobacco use + diabetes + age >55 years: | Creatinine |
| Thrombocytopenia: | Platelet count |
| Urinary tract infection (suspected): | Urinalysis; sample hold for C/S if UA suggestive of infection |
