Prep for USMLEPrep for USMLE
         Forum      |     Resources New Posts   |   Register   |   Login

 My exam advice  

Post Reply  
  • 0/5
  • 1
  • 2
  • 3
  • 4
  • 5

Author2 Posts

Hyponatremia refers to the condition in which body’s sodium is <135mEq/L
Si/Sx: confusion, convulsion, fatigue, irritability, coma, headache, vomiting


Pseudohyponatremia: Every 100mg/dl glucose above the normal limit, decrease sodium by 1.6 mEq/L
Hypervolemia: CHF, cirrhosis, nephrotic syndrome
Hypovolemia: diarrhea, vomiting, sweating, renal insufficiency, low aldosterone
Euvolemic: hypothyroidism, psychogenic, polydipsia, SIADH, oxytocin


If the patient is stable, then restrict the water intake to 1 L/day

If the patient is confused or has mild symptoms, then give normal saline and loop diuretics

If the patient has severe symptoms (seizure, coma), then give 3 % hypertonic saline, but don’t exceed >0.5mEq/hour or 12mEq in a day otherwise patient may develop central pontine myelinolysis

A stable patient with pseudohyponatremia is treated by correcting the glucose level

if you like the book, please find it on amazon: Most Likely Diagnosis USMLE Step 2 CK



thank u

Bookmark and Share

Login or Register to post messages

show Similar forum topics

exam in a week need advice
PASSED New CS Exam!! my advice
show Related resources

Exam Master USMLE Step 1
Kaplan 1-Day Step 2 CS Simulated Exam
Exam Master USMLE Step 2 CS Online

Advertise | Support | Privacy | TOS | Premium | Contact