13 results
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 ... Na >1 is predictive ... differential #diagnosis ... #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... water retention 1) ... Serum Osmolarity 2) ... #Algorithm #nephrology
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Diagnosis Algorithm ... Workup Step #1 ... history Step #2 ... #Management #Algorithm ... #Sodium #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Workup Step 1 ... Repeat the sodium ... Step 2. ... #Algorithm #Nephrology
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Hyponatremia - Diagnosis ... 1) Is it hypotonic ... 2) Is ADH elevated ... augmentation with DDAVP ... #nephrology #sodium
DDAVP Clamp Protocol in Hyponatremia
 • Stop any maintenance fluids.
 • Start DDAVP 2 mcg IV
in Hyponatremia ... 2 mcg IV q8h • ... Start 3% NaCl (1- ... every 2 hours initially ... #management #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... Workup Algorithm ... 1) Check Urine ... renal mechanism 2) ... #nephrology #sodium
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
Hyponatremia Diagnostic ... Algorithm 1) Check ... serum osmolality 2) ... #Diagnosis #Algorithm ... #nephrology
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
output is a clue). 1) ... water unavailable 2) ... ([Na] / 140) - 1) ... #Treatment #management ... #nephrology #sodium
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
3g IV Ca-gluconate ... 5-10U reg IV + 1- ... 2 amps D50W ... Use gtt, NOT hypertonic ... #potassium #nephrology