30 results
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Do you need an ABG ... approximates an ABG ... the chronicity (acute ... , chronic, or acute ... Disorders #Evaluation #workup
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acute or chronic ... ABG And BMP Normal ... Compensation, Acute ... D-lactate (short bowel syndrome ... #Summary #Nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic ... Alkalosis - Differential ... Diagnosis Algorithm ... hyperaldosteronism • High PRA: Renal ... #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic ... Alkalosis - Differential ... Diagnosis Algorithm ... hyperaldosteronism • High PRA: Renal ... #Nephrology #Causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
- Differential Diagnosis ... tubal acidosis and metabolic ... alkalosis, Ketonuria ... UNa > 20: • Acute ... Algorithm #Causes #nephrology
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Metabolic alkalosis ... Renal artery stenosis ... Differential #Algorithm #Diagnosis ... #Causes #Workup ... #Nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... - Differential Diagnosis ... resp. alkalosis ... FEPO4 ≥ 5% - Renal ... #phosphate #nephrology
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Diagnosis ECF ... postchronic hypercapnia (acute ... diuretics after renal ... #Diagnosis #Causes ... #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
- Differential Diagnosis ... depletion: Respiratory alkalosis ... ), Hungry bone syndrome ... • Renal losses ... Algorithm #causes #nephrology
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
- Differential Diagnosis ... Framework and Workup ... NAGMA - Chem, ABG ... NonAnionGap #Acidosis #Metabolic ... #Workup #nephrology