61 results
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Feedback Loop: Prolactin ... Prolactin #PRL #FeedbackLoop
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Feedback Loop: Growth ... GrowthHormone #GH #FeedbackLoop
Toxidromes Compared: Anticholinergic, Cholinergic, Opioid, Sympathomimetic, Sedative-Hypnotic

During your physical exam, look for evidence of some of
- edit: Reddit Feedback ... Toxidromes #Comparison #Table
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
evaluate cause of renal ... h of infusion Adrenal ... CT scan, adrenal ... • Congenital adrenal ... Screening #Workup #table
Summary of dosing recommendations in renal impairment of commonly used hypoglycaemic agents

#Diabetes #Diabetic #Medications #Pharmacology #Dosing
recommendations in renal ... Dosing #Dosing #Renal ... Impairment #CKD #Table
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hypothyroidism - Adrenal ... Suppressed - Advanced renal ... Differential #Diagnosis #Table
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
Primary Adrenal ... dysfunctional adrenal ... Elevated, because feedback ... inhibition by adrenal ... injury to the adrenal
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
≥100): SIADH, Renal ... Hypothyroidism, Adrenal ... Present (Uosm <100): Renal ... Hypervolemia with poor renal ... differential #diagnosis #table
Hyperaldosteronism - Etiologies of Mineralocorticoid Excess

Primary Hyperaldosteronism (Normal or Low Renin, High Aldosterone) 
 - Aldosterone-secreting
- Congenital adrenal ... Aldosterone #Comparison #Table
Renal Tubular Acidosis (RTA) Diagnosis and Management
 • Distal (type 1) RTA
 • Proximal (type 2)
Renal Tubular Acidosis ... 4) RTA #rta #Renal ... Management #nephrology #table