8 results
Urinalysis Testing - UTI Sensitivity and Specificity
 - Leukocyte esterase 
 - Nitrite 
 - WBCs
Urinalysis Testing ... - UTI Sensitivity ... and Specificity ... #Accuracy #Sensitivity ... #Specificity #Laboratory
Emergency physician interpretation of point-of-care ultrasound for identifying and grading of hydronephrosis in renal colic compared
Emergency physician interpretation ... with consensus interpretation ... Hydronephrosis #Comparison #Accuracy ... #Sensitivity #Specificity ... #Testing
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Pathogens, and Testing ... Glucan-containing gauzes ... Galactomannan #Pathogens #Testing ... Characteristics #Sensitivity ... #Specificity #Laboratory
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... Methods - Sensitivity ... and Specificity ... #Laboratory #Diagnosis ... #Accuracy
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Differential Diagnosis Algorithm ... : • Androgen insensitivity ... Hypothalamic: • Functional ... (e.g. eating disorder ... Differential #Diagnosis #Algorithm
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Sensitivity (rule ... Specificity (rule ... FN) Higher specificity ... error Validity (“accuracy ... but not on the causal
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
has higher specificity ... test but lower sensitivity ... more time for the laboratory ... including liver function ... Rheumatoid #Arthritis #laboratory
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... confirmed via genetic testing ... continued in most cases ... ; interpretation ... dependent upon local laboratory