10 results
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis Workup ... Algorithm 1) ... Check Urine Osmolality ... Euvolemic: Diabetes insipidus ... #sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
occurs in only ... tobacco users; in ... Pseudohyponatremia, SIADH ... intoxication Initial Workup ... , Urine Sodium
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Urine Na+K / serum ... restriction alone in ... SIADH RAAS Inactive ... , Renal Sodium loss
A lazy man's classification of hyponatremia
There are two possible approaches to the diagnosis of hyponatremia: .
In their most basic ... serum osmolality, urine ... osmolality and urinary sodium ... the patient has SIADH ... #Algorithm #Differential
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
SIADH Treatment ... promoting passive sodium ... 0.9% NS • If Urine ... #Management #hyponatremia ... #nephrology #treatment
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... promoting passive sodium ... Saline: • If Urine ... #Management #hyponatremia ... #nephrology #treatment
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
history, exam, and urine ... osm (in DI; high ... dilute urine output ... post-obstructive 3) Diabetes Insipidus ... management #nephrology #sodium
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
In the vast majority ... 3 questions to work ... Measure urine osmolality ... in 100 mL boluses ... management #nephrology #sodium
Management of Hyponatremia
Hypertonic Saline - Only indicated if patient has severe symptoms + Na < 125
Give
Management of Hyponatremia ... not improving in ... SIADH • IF SIADH ... #Management #algorithm ... #treatment #sodium
Flowchart to diuretic use in acute heart failure.

(A) Congestion with volume overload. 

(B) Treatment algorithm after
(B) Treatment algorithm ... intravenous; SGLT2‐I, sodium–glucose ... ultrafiltration; UO, urine ... Diuresis #CHF #Algorithm ... #HeartFailure #Cardiology