4966 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
FP + TN) = true negatives ... all positives Negative ... FN + TN) = true negatives ... / all negatives ... Specificity) Negative
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
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Endocarditis Native ... epidermidis - Gram-negative ... ) - Culture negative ... Enterococci - Gram-negative ... streptococci - Culture negative
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Systemic infection Native ... Staphylococcus lugdunensis Native ... HACEK • Culture-negative ... epidermidis • Gram-negative ... Enterococcus • Gram-negative
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
Video by Dr. ... PhysicalExam #Clinical #Video ... #Negative #Neurology
Acute Coronary Syndrome - Management Algorithm
 • STEMI
 • NSTEMI (Troponin Positive) / Unstable Angina (UA,
(UA, Troponin Negative ... Management #Algorithm #cardiology
Cardiac MRI Demonstrating Electrical Alternans in Pericardial Effusion

Dr Prasad Jain @DrPrasadJain

#Pericardial #Effusion #Cardiac #MRI #Cine #CMRI
Alternans #clinical #video ... #radiology #cardiology
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
● Positive or negative ... R) or entirely negative ... Positive or negative ... Comparison #Diagnosis #Cardiology
Characteristics of Selected Pneumonias

Streptococcus pneumoniae (pneumococcus). Gram-positive diplococci. 
Haemophilus influenzae. Pleomorphic gram-negative coccobacilli. 
Staphylococcus aureus. Plump
Pleomorphic gram-negative ... Plump gram-negative ... Gram-negative rods ... Gram-negative rods ... Gram-negative diplococci
Relative Afferent Pupillary Defect

Dr. Felipe Duarte Augusto @semiologianeurologica

#RAPD #Relative #Afferent #Pupillary #Defect #Neurology #Clinical #Video #Pupils
Relative Afferent ... semiologianeurologica #RAPD #Relative ... Neurology #Clinical #Video