39 results
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
JTc=QTc-QRS When ... than prolonged QT ... Interval #JTInterval #QTc ... electrocardiogram #pathophysiology ... #ekg #ecg #cardiology
Hormones Acting on the Nephron - Diuretics and Their Site of Action
 1) Acetazolamide
 2) Osmotic
Osmotic Diuretics (e.g ... Loop Diuretics (e.g ... 4) Thiazides (e.g ... spironolactone) #Pathophysiology ... #Nephrology #Nephron
Nephron Pathophysiology - Diuretic Sites of Action
Diuretics
1) Acetazolamide/canagliflozin
2) Osmotic agents (mannitol, urearetics)
3) Loop agents (eg, furosemide)
4)
Nephron Pathophysiology ... ) Loop agents (eg ... Adenosine #Nephron #Pathophysiology ... Sites #Action #nephrology
Managing side effects of birth control

Adverse effects associated with hormonal contraceptives (e.g. headache, breakthrough bleeding, etc)
contraceptives (e.g ... breakthrough bleeding, etc ... continuous use (e.g ... progestin component, etc ... medications #obgyn #table
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
prolonged PR and QT ... #Hyperkalemia #EKG ... #ECG #Changes # ... Progression #Table
Coverage of common antibiotics used in the hospital

For empiric coverage, first define the type of infection,
prior resistance. e.g ... ESBL, KPC, VRE. etc ... pharmacology #table
Diagnostic Algorithm for the Patient with Seizure in the Emergency Department
Does the history suggest a seizure?
additional symptoms (eg ... speech abnormality, etc ... Seizure #management #Neurology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
polyneuropathy (e.g ... differential #diagnosis #table ... #neurology
Pisa Syndrome (pleurothotonus) on Physical Exam
A tonic flexion of the trunk of the body to one
by: - drugs (e.g ... neurodegenerative disorders (eg ... Pathophysiology: ... PhysicalExam #clinical #neurology
Priapism: Pathogenesis

 - Post-cavernosal venous occlusion -> Post-cavernosal venous drainage is mechanically obstructed e.g. sickle cell
mechanically obstructed e.g ... disease, dialysis etc ... #Priapism #Pathophysiology ... #Urology #Diagnosis