12 results
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Diagnosis Algorithm ... Acute Respiratory Alkalosis ... Hypokalemia • Hypomagnesemia ... Increased Excretion - GI ... endocrinology #causes
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Chronic diarrhea ... #Differential # ... Diagnosis #Low # ... Classification #Causes ... #Workup #hypomg
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
- Differential ... Diagnosis Algorithm ... Gitelman syndrome, Hypomagnesemia ... diarrhea, Kidney ... #causes #urinary
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Anorexia GI ... NG drainage - Diarrhea ... - Polyuria - Hypomagnesemia ... Catecholamines - Alkalosis ... Classification #Causes
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Base Disorders - Evaluation ... , or acute on chronic ... Differential Diagnosis ... : GI loss of H+, ... #workup #Differential
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
: • Decreased GI ... Absorption: Chronic ... Diarrhea, Antacids ... Acute Respiratory Alkalosis ... nephrology #phosphorus #workup
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
- Differential ... FEPO4 < 5%: • GI ... Malabsorption, Chronic ... diarrhea, Poor ... Glucose, Acute resp. alkalosis
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Gitelman syndrome, Hypomagnesemia ... metabolic acidosis • Chronic ... the indicated causes ... Algorithm #nephrology #differential ... #diagnosis
Algorithm for the Evaluation of Chronic Diarrhea (< 7 days)
Exclude:
1. Causes of acute diarrhea
2. Lactose intolerance
3.
Algorithm for the Evaluation ... of Chronic Diarrhea ... Causes of acute ... #algorithm #workup ... #diagnosis #differential
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea ... - Workup Osmotic ... #Diarrhea #Workup ... #diagnosis #differential ... #testing #evaluation