11 results
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
False-Negative Contingency Table ... #Specificity #FalsePositive ... #FalseNegative ... #Contingency #Table
Causes of False-Positive and False-Negative IGRA and TST Results

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
Causes of False-Positive ... SkinTest #TSTs #IGRA #FalseNegatives ... #FalsePositives ... #Causes
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Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Causes of Inaccurate ... #OccultBlood #Testing ... #Laboratory #FalsePositive ... #FalseNegative
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
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
drugs that may cause ... Toxicology #Diagnosis #FalsePositive ... #Testing
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
type 4) - Salt wasting ... Low #Potassium #Table ... #Classification ... #Causes
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Low #Magnesium #Table ... #Classification ... #Causes #Workup
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... Cerebral Salt Wasting ... differential #diagnosis #table
Perhaps quite too often, the knee-jerk reaction to an elevated Troponin is to call our friends
only 5% of the resting ... are typically able ... treat the primary cause ... may not be the case ... clinica l#foamed #algorithm
Perhaps quite too often, the knee-jerk reaction to an elevated Troponin is to call our friends
only 5% of the resting ... are typically able ... treat the primary cause ... may not be the case ... #diagnosis #algorithm