10 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... normal T4 +/- T3 ... TSH, high T4 +/- T3 ... #algorithm #diagnosis ... endocrinology #TFTs #TSH #Interpretation
Amenorrhea - Differential Diagnosis Algorithm
Elevated FSH
 • Premature Ovarian Failure
 • Menopa use
 • Spontaneous
Bleed With
Differential Diagnosis Algorithm ... • Hyperthyroidism ... Challenge • Functional ... • Weight Loss, Eating ... endocrinology #causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... Differential Diagnosis Algorithm ... Cerebral salt wasting ... Glucocorticoid deficiency, Hypothyroidism ... #Causes #nephrology
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Differential Diagnosis Algorithm ... Hypothalamic: • Functional ... (e.g. eating disorder ... Hyperprolactinemia • Hypothyroidism ... Differential #Diagnosis #Algorithm
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... arrhythmias and paralysis ... from other causes ... suggests extra-renal causes ... differential #potassium #nephrology
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... estrogen: • Functional ... (e.g. eating disorder ... compression) • Hypothyroidism ... #Causes #OBGyn
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... hypomagnesemia), Eating ... , nasogastric suction ... #Hypokalemia #Causes ... differential #diagnosis #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... or low Uosm), Hypothyroidism ... Cerebral Salt Wasting ... table #sodium #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... Vomiting • NG suction ... #Hypokalemia #Nephrology ... Differential #Diagnosis #Algorithm
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... confirmed via genetic testing ... continued in most cases ... ; interpretation ... #nephrology