239 results
Cardiac Myocyte Contractile cycle
 - Ca2+ binds to TnC → TnI is inhibited → conformational change
Cardiac Myocyte Contractile ... progressively shorten ... Cardiology #Myocyte #Contractile ... #Cycle #Contraction
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens ... provide the earliest clues ... repolarization causes ... in conduction causes ... #Progression #Table
Causes of mitral stenosis
Rheumatic heart disease
 - Most common cause worldwide. Commissural fusion, thick MV leaflets
Causes of mitral ... - Most common cause ... thickened and shortened ... parachute MV (caused ... mitral #stenosis #Causes
Postpartum Hemorrhage - Differential Diagnosis, Examination and Management

Uterotonic Medications (after delivery of the placenta):
 • Oxytocin
• Oxytocin (causes ... uterine contraction ... Methylergonovine (causes ... uterine contraction ... induces uterine contraction
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Tamponade* • Constriction ... Artery Disease • Stable ... Pleural Thickening/Masses ... Diagnosis #Algorithm #Causes
Jugular Waveform Components 
 • a wave - due to atrial contraction: It occurs just before
due to atrial contraction ... • c wave - caused ... isovolumetric contraction ... y descent - is caused
Dyspnea - Differential Diagnosis and Presentation

#Diagnosis #Differential #Table #Dyspnea #SOB #Causes
#Differential #Table ... #Dyspnea #SOB #Causes
Renal tubular acidosis (RTA): refers to a group of conditions all of which cause the same
conditions all of which cause ... different types/causes ... RenalTubularAcidosis #Features #Table
Hydrophobia on Physical Examination

Seen in the late stages of rabies.  Caused by painful paroxysmal contractions
Caused by painful ... paroxysmal contractions
Kussmaul's Sign on Physical Exam

What’s the diagnosis?
Severe biventeicular failure with + Kussmaul sign! NICM. No constriction!

-
No constriction! ... DDx includes constriction ... and other rarer causes