627 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... found in 60% of cases ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
vs Noninfective Causes ... HACEK • Culture-negative ... epidermidis • Gram-negative ... Enterococcus • Gram-negative ... #Noninfective #Causes
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
for a PERIPHERAL cause ... Nystagmus #HINTS #PhysicalExam ... Clinical #Video #Negative
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
C3 positive or negative ... mediated - DAT: IgG negative ... Pathophysiology #diagnosis #hematology
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... 100%, then all negative ... proportion of negative ... that are true negatives ... but not on the causal
Normal (Negative) Lachman Test for ACL Injury

Andrew Dold, MD @dr.dold.md

#Lachmans #test #ACL #Knee #Injury #Normal #Negative
Normal (Negative ... Injury #Normal #Negative ... clinical #video #PhysicalExam
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
with a peripheral cause ... of AVS and negative ... with a central cause ... #Diagnosis #PhysicalExam
Differential Algorithm for the Causes of thrombocytopenia 

#Diagnosis #Hematology #Thrombocytopenia #Causes #Differential
Algorithm for the Causes ... #Diagnosis #Hematology ... Thrombocytopenia #Causes
Nail Disorders - Primary and Systemic Causes - Differential Diagnosis Algorithm

#NailDisorders #Primary #Secondary #Systemic #dermatology #Differential
Primary and Systemic Causes ... Secondary #Systemic #dermatology ... Diagnosis #Algorithm #causes
Normal (Negative) Babinski / Plantar Reflex

The plantar reflex is a reflex elicited when the sole of
Normal (Negative ... plantar reflex causes ... Reflex #Plantar #Negative ... #Video #Signs #PhysicalExam