25 results
Causes of Hyperkalemia

Hyperkalemia is caused by excess potassium intake, impaired potassium excretion, or transcellular shifts. The
Causes of Hyperkalemia ... by excess potassium ... renal function, medication ... #Hyperkalemia #Differential ... #Causes
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False ... can cause false ... Nonprescription nasal Antihistamine ... Over-the-counter antihistamines ... #drug #tests #differential
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Causes of Excessive ... Daytime Sleepiness - Differential ... Anxiety Other • Medications ... Benzodiazepines, Antihistamines ... Diagnosis #Algorithm #Causes
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Mydriasis and Miosis - Differential ... Diagnosis Framework Causes ... inhibitors, Atropine, Antihistamines ... Hypothermia Causes ... Mydriasis #Miosis #differential
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
blockers which cause ... and Verapamil) Antihistamines ... #Pharmacology #Medications ... Toxicology #Diagnosis #Differential ... #Drugs #Classes
A toxidrome is a syndrome (set of symptoms) caused by specific medications or toxins.

There are 5
set of symptoms) caused ... by specific medications ... zopiclone, zolpidem), antihistamines ... Toxicology #Toxidromes #Comparison
Potassium-Binding Agents to Treat Hyperkalemia
Sodium zirconium cyclosilicate (Lokelma):
 • Mechanism: Preferentially captures K in exchange for
Potassium-Binding ... and sodium • Dosing ... of aspiration #Potassium ... #Hyperkalemia #medications ... pharmacology #table #comparison
Constipation - Differential Diagnosis Algorithm
Diet/Lifestyle
 • Fibre
 • Calories
 • Fluid
 • Exercise
 • Psychosocial
Medications
 •
Constipation - Differential ... Psychosocial Medications ... Neurally Active Medications ... Aluminum, Calcium, Potassium ... Diagnosis #Algorithm #Causes
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
Common Medications ... , pentamidine Antihistaminics ... #Prolongation #Medications ... #Causes #differential
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Clenching of fist during ... Medications 2. ... #diagnosis #causes ... #potassium #high