119 results
Instructions on how to perform the swinging light test to detect a relative afferent pupillary defect.

http://www.cmaj.ca/content/early/2015/01/05/cmaj.140685

Normal
swinging light test ... swinging light test ... swinging light test ... #Diagnosis #PhysicalExam ... Swinging #Light #Test
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... Disease trigger - Direct ... - Ice cube test ... , TempTest test ... rheumatology #comparison #table
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
alternating light test ... swinging-flashlight test ... sensitive diagnostic test ... regarding the cause ... Pupils #MacrusGunn #PhysicalExam
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
False-Negative Contingency Table ... ability to correctly detect ... Specificity of a test ... disease, who will test ... #Contingency #Table
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Causes of Secondary ... Renal ultrasound, Tests ... sodium loading test ... saline infusion test ... Screening #Workup #table
Clues to Differential Diagnosis of Central Cyanosis: Onset of cyanosis, Clubbing, Secondary erythrocytosis, Auscultation, X-ray, Echocardiography,
Clues to Differential ... Cyanotic heart defect ... Central #Cardiology #Causes ... #Table #Comparison
HINTS Exam - Abnormal Head Impulse Test = Peripheral Cause

This video demonstrates:
1) Normal Head Impulse Test
Abnormal Head Impulse Test ... = Peripheral Cause ... Normal Head Impulse Test ... for a PERIPHERAL cause ... #HINTS #PhysicalExam
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
value is low, tests ... decrease in most cases ... platelet number Direct ... tests - Negative ... hematuria (without casts
HINTS Exam - Abnormal Test of Skew (Abnormal Vertical Skew)

In a patient with vertigo symptoms, this
Exam - Abnormal Test ... for a CENTRAL cause ... Vertical #Skew #Test ... #HINTS #PhysicalExam
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... reliable noninvasive test ... first-level screening test ... on low-gluten diet ... Diagnosis #Workup #Table