9 results
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Approach to Acid ... Evaluation and Differential ... Do you need an ABG ... Generally, for acid ... /base, a VBG approximates
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... ) = {Na - (Cl + ... Diagnosis #Summary #Nephrology ... #Acid #Base #Gas ... #VBG #differential
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Losses: • Normal Acid-Base ... Low intake • Metabolic ... #Differential # ... potassium #low #nephrology
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Non-anion Gap Metabolic ... , Pyroglutamic acid ... Acid loads (ammonium ... #Acidosis #differential ... diagnosis #causes #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Kidney loss of Cl ... poisoning Normal acid-base ... and potassium acid ... urine #Algorithm #nephrology ... #differential #
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
OTCs, herbals, abx ... - Urine Na/K/Cl ... - CPK, uric acid ... AcuteKidneyInjury #AKI #Nephrology ... Algorithm #Causes #Differential
Lactic Acidosis - Differential Diagnosis Framework

Type A: Impaired O2 Delivery (DO2)
 • Decreased O2 Delivery: Hypotension
Lactic Acidosis - Differential ... Hypotension & Hypovolemia ... PRIS), Valproic Acid ... Inborn Errors of Metabolism ... • Presents as AG
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Acid-base ... Metabolic alkalosis ... Vitamin or folic acid ... Renal 1. ... #Differential #
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
Osmolar Gap ACID-BASE ... AG S 8-16 mEq ... (HCO3d-HCO3m) Metabolic ... HCO3)+8 (+-2)| Metabolic ... base Equation