117 results
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Blood Testing (FOBT ... immunochemical test ... of time) Why FOBT ... OccultBlood #Testing #FOBT ... #Guaiac #FalsePositives
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Specificity of a test ... disease, who will test ... #Specificity #FalsePositive
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Fecal Occult Blood Test ... False Positive gFOBT ... medication #Guaiac #FOBT ... Testing #Laboratory #FalsePositive
Diabetic Foot Guidelines: Test patients w diabetes for peripheral neuropathy using the Semmes-Weinstein test
JAMA. 2017;318(14):1387-1388. doi:10.1001/jama.2017.11700

#Diagnosis
Diabetic Foot Guidelines ... : Test patients ... Semmes-Weinstein test
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
false positive tests ... Toxicology #Diagnosis #FalsePositive
Abnormal Simmonds-Thompson Test (Positive) for Achilles Tendon Rupture

In this positive Simmonds-Thompson test, there is no plantar
Simmonds-Thompson Test ... Simmonds-Thompson test ... flexion of the foot ... Simmonds #Thompson #Test
POCUS Stewardship
Right Indication - Right Interpretation -Right Integration
Indication → Pre-test Probability → Spectrum of Disease →
POCUS Stewardship ... Indication → Pre-test ... Step 2: Pre-test ... Develop a pre-test ... assign a final post-test
Normal Simmonds-Thompson Test (Negative) for Achilles Tendon Rupture

In this normal Simmonds-Thompson test, plantar flexion of the
Simmonds-Thompson Test ... Simmonds-Thompson test ... flexion of the foot ... Simmonds #Thompson #Test
Talus Fracture on POCUS
Athlete with hard landing on one foot, pain and tenderness over dorsum of
Talus Fracture on POCUS ... landing on one foot ... over dorsum of foot ... POCUS showed talus ... Talus #Fracture #POCUS
In a patient in the supine position, raising the leg with the knee extended stretches the
A positive test ... dorsiflexion of the foot ... (Fajersztajn’s test ... in a positive test ... This test is 90%