41 results
Causes of False-Positive and False-Negative IGRA and TST Results

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
SkinTest #TSTs #IGRA #FalseNegatives ... #FalsePositives
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
#Specificity #FalsePositive ... #FalseNegative
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
#OccultBlood #Testing ... #Laboratory #FalsePositive ... #FalseNegative ... #Diagnosis #Differential
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... to unnecessary testing ... #OccultBlood #Testing ... #FOBT #Guaiac #FalsePositives ... #FalseNegatives
Algorithm for the diagnosis of chronic diarrhea.
It is usually impractical to test and treat the many
Algorithm for the ... reduce unnecessary testing ... the much smaller differential ... Chronic #Diarrhea #Algorithm ... #Testing
COVID-19 False Negative Score Calculator

CONTACT - Does the patient have a known COVID-19 contact?
OTHER - Does
DIFFERENTIAL - Does ... #COVID19 #FalseNegatives ... Coronavirus #SARSCOV2 #Testing
Spirometry - PFT Interpretation Algorithm

- BWH Medicine Chiefs @BrighamChiefs

#Spirometry #PFTs #Interpretation #Algorithm #diagnosis #differential #pulmonary #function
Interpretation Algorithm ... Interpretation #Algorithm ... #diagnosis #differential ... pulmonary #function #testing
Hypophosphatemia - Measurement of urine phosphate excretion - Differential Diagnosis Algorithm
 • GI loss
 • Redistribution
phosphate excretion - Differential ... Diagnosis Algorithm ... Primary Renal PO4 wasting ... phosphate #excretion #Differential ... #Diagnosis #Algorithm
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Proteinuria - Differential ... Diagnosis Algorithm ... present on repeat testing ... including overnight testing ... #Diagnosis #Algorithm
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Acid → renal salt wasting ... #Hyponatremia #Differential ... #Diagnosis #Algorithm