66 results
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
- Localization Map ... sectroanopia) #VisualFieldDefects ... #Blindness #Localization ... #Map #NeuroOphthaImoIogy ... Diagnosis #Anatomy #Causes
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... K), H. pylori test ... thyroid function test ... However, it may ... patients if the cause
Newer Syphilis Reverse Algorithm 

The advent of newer, faster 
treponemal antibody tests have 
allowed high-throughput of
treponemal antibody tests ... specific trep. tests ... RPR) Non-trep tests ... of inflammation caused ... quantitative and may
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Auditory findings may ... with vascular causes ... positional episodes caused ... Positive Hallpike test ... or supine roll test
Black and Bloody Stools - Melena and Hematochezia
Melena - Refers to passage of black, tarry (sticky
Occult blood tests ... result from other causes ... occult blood tests ... also cause red ... #Differential #Causes
Toxic Alcohol Ingestion: Methanol
Solvent found in cleaning and printing solutions, adhesives, stains, paint removers,
antifreeze agent in
- Permanent blindness ... . formic acid) causes ... , but does NOT cause ... osmolal gap # ... Methanol #Ingestion #ALiEM
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Exam: • Hearing tests ... whispered voice test ... neuroma) and stroke may ... 512 Hz) Weber Test ... cause unknown)
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
Froment’s Test for ... Palsy This tests ... grip weakness caused ... compensates via MP ... Froments #Sign #Test
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
pp65 antigenemia test ... Retinitis (Most common cause ... of blindness in
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... aldosterone - Low in cases ... CRH stimulation test ... - Serum tests that ... normal, although it may