Internal Medicine Eor Study Guide Graded A+

angina pectoris Dx {Ans: EKG btw episodes... 1/3 have normal EKGs nonspecific ST-T changes evidence of prior MI (pathological Qs) conduction abnormalities (LBBB, RBBB, fascicular blocks) during angina... ST depression/possibly elevation T-wave inversion cardiac enzymes negative (CK, CKMB, troponin) elevated cholesterol elevated glucose CXR often normal evidence of CHF arterial calcifications diagnose via stress testing! > ST thus > chance of CAD systolic BP drop > 10 mm Hg is bad}RANSONs criteria {Ans: Age in years > 55 years White blood cell count > 16000 cells/mm3 Blood glucose > 10 mmol/L (> 200 mg/dL) Serum AST > 250 IU/L Serum LDH > 350 IU/L In 48 hours: Serum calcium < 2.0 mmol/L (< 8.0 mg/dL) Hematocrit fall > 10% Oxygen (hypoxemia PaO2 < 60 mmHg) BUN increased by 1.8 or more mmol/L (5 or more mg/dL) after IV fluid hydration Base deficit (negative base excess) > 4 mEq/L Sequestration of fluids > 6 L}Myocardial infarction {Ans: -Infarct = death of myocardial cells d/t obstruction of blood flow -Normally an ST segment elevation MI (AKA STEMI) *ST elevation (in localized in the lead) is myocardial injury/infarction until proven otherwise*}Diagnostic studies for bronchitis? {Ans: Generally not needed. Can