9 results
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Gastrointestinal Evaluation ... patients with anemia, diagnose ... Non-invasive testing ... Gastrointestinal #Evaluation ... #workup #diagnosis
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
pituitary) and deficiency ... Insufficiency #Evaluation ... #laboratory #diagnosis ... #testing #endocrinology ... #workup
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
- 1° HPT - 1° Renal ... PO4 wasting: Hereditary ... , TIO, Fanconi Syndrome ... glucose - Vitamin D Deficiency ... Hypophosphatemia #phosphorus #low
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... - Differential Diagnosis ... FEPO4 ≥ 5% - Renal ... • Normal or Low ... #phosphate #nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
differentiating kidney K wasting ... , Congenital adrenal ... consumption • Low ... #Hypokalemia #diagnosis ... #low
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Cerebral salt wasting ... Glucocorticoid deficiency ... Cirrhosis, Nephrotic syndrome ... Hyponatremia #algorithm #diagnosis ... #sodium #low #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
mineralocorticoid deficiency ... can be high or low ... Cerebral Salt Wasting ... Cirrhosis, Nephrotic syndrome ... #differential #diagnosis
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
formed or don’t work ... or folic acid deficiency ... given to organ transplant ... Workup: • Complete ... #diagnosis #hematology
Celiac Disease - Diagnosis Algorithm
IgA TTG has high sensitivity and specificity of ~ 98% and is
serologic marker for evaluating ... IgA deficiency affects ... and Williams’ syndromes ... pts need further testing ... gastroenterology #workup