71 results
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
EKG in Acute Pulmonary ... specificity for EKG ... EKG is helpful in ... evaluating for other causes ... Embolism #AcutePE #diagnosis
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
blockers which cause ... QRS #widening #ECG ... #EKG #Pharmacology ... #Medications #Toxicology ... #Diagnosis #Differential
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... abberancy - N B Afib ... 200ms from longer pause ... bradyarrhythmia #ECG ... #EKG #diagnosis
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... in conduction causes ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Infiltrative disorders (e.g ... in kidneys) - Medications ... (e.g. lithium, ... renal diseases (e.g ... #Table #Causes
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
- Differential Diagnosis ... side effect (e.g ... side effect (e.g ... Classification #Table ... #Causes
Assessment of the Child with Eczema
Distribution of atopic eczema - The distribution of eczema tends to
Bacterial infection, e.g ... Viral infection, e.g ... of an allergen, e.g ... . egg - Contact ... peds #pediatrics #diagnosis
Oral anti-hypertensives with relative fast onset of action (Hypertensive Emergency)

The key concern with oral antihypertensive agents
you're up-titrating medications ... (e.g. procedural ... allow one dose of medication ... Emergency #Management #Pharmacology ... #Table #BloodPressure
Constipation - Differential Diagnosis Algorithm
Diet/Lifestyle
 • Fibre
 • Calories
 • Fluid
 • Exercise
 • Psychosocial
Medications
 •
- Differential Diagnosis ... (e.g. ... Cation Related (e.g ... Anticholinergic (e.g ... #Algorithm #Causes
Medications causing Acute Kidney Injury (AKI)
Prerenal:
 • Dehydration: Diuretics
 • Altered intrarenal autoregulation: ACEIs / ARBs,
calcineurin inhibitors (e.g ... Sympathomimetics (e.g ... anticholinergic effects (e.g ... #Drugs #pharmacology ... #differential #diagnosis