LR(+) 24.0 Appendicitis Abdominal CT LR(−) 0.06 LR(+) 5.0 Ascites Fluid wave present LR(−) 0.6 LR(+) 8.7 Breast cancer Mammogram LR(−) 1.4 LR(+) 3.8 Breast cancer Clinical breast examination LR(−) 0.69 LR(+) 19.6 Clostridium difficile colitis C. difficile toxin–positive LR(−) 0.02 Estimated central venous LR(+) 10.4 Heart failure pressure >12 cm H2O on LR(−) 0.1 examination LR(+) 24.4 Serum ferritin <60 ng/mL (60 Iron-deficiency anemia µg/L) LR(−) 0.15 Mini-Mental State Examination Dementia LR(+) 2.5 score <26/27 Positive result on rapid strep Strep throat LR(+) 15.2 antigen detection test LR(+) 4.5 SLE Antinuclear antibody LR(−) 0.125 LR(+) 73 Anti–double-stranded DNA SLE LR(−) 0.27 antibody (>1:80) SLE = systemic lupus erythematosus Adapted from: McGee, Steven. Evidence-Based Physical Diagnosis. Philadelphia: Elsevier Saunders; 2012.
Appendicitis Abdominal CT LR(+) 24.0 LR(−) 0.06 Ascites Fluid wave present LR(+) 5.0 LR(−) 0.6 Breast cancer Mammogram LR(+) 8.7 LR(−) 1.4 Breast cancer Clinical breast examination LR(+) 3.8 LR(−) 0.69 Clostridium difficile colitis C. difficile toxin–positive LR(+) 19.6 LR(−) 0.02 Heart failure Estimated central venous pressure >12 cm H2O on examination LR(+) 10.4 LR(−) 0.1 Iron-deficiency anemia Serum ferritin <60 ng/mL (60 µg/L) LR(+) 24.4 LR(−) 0.15 Dementia Mini-Mental State Examination score <26/27 LR(+) 2.5 Strep throat Positive result on rapid strep antigen detection test LR(+) 15.2 SLE Antinuclear antibody LR(+) 4.5 LR(−) 0.125 SLE Anti–double-stranded DNA antibody (>1:80) LR(+) 73 LR(−) 0.27 SLE = systemic lupus erythematosus Adapted from: McGee, Steven. Evidence-Based Physical Diagnosis. Philadelphia: Elsevier Saunders; 2012.
hvc_3_lr_handout.docx