581 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders ... • Metabolic Acidosis ... • Respiratory Acidosis ... (pCO2 > 40 mmHg ... Respiratory Alkalosis (pCO2
Acid-Base Disorders - Expected Compensation Equations

Metabolic Acidosis:
 • pCO2 = 1.5 x HCO3 + 8 ±
Acid-Base Disorders ... Equations Metabolic Acidosis ... Respiratory Acidosis ... ∆ HCO3 ↓ 4 #Acid ... #Respiratory #Acidosis
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
Acid Base Compensation ... variables (pH, HCO2 ... , pCO2) move in ... Nephro #AcidBase #Acidosis
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
Acid Base and Blood ... 2. pCO2 - What’s ... the pCO2? ... Respiratory Acidosis ... Medications, Central, ↑ CO2
Acid Base Disorders Worksheet

Step 1: Gather the necessary data (Na+, CI-, HCO3-, PH, pCO2). Preferably, all
Acid Base Disorders ... has a primary acidosis ... >40 patient's acidosis ... <40 patient's acidosis ... joshsteinbergMD #Acid
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
Interpretation and Acid-Base ... patient have an acidosis ... Look at the pCO2 ... Metabolic Equal (If pCO2 ... the change in pCO2
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Approach to Acid ... are they more acidotic ... Generally, for acid ... and ~5 mmHg to pCO2 ... @EmmGeezee #Acid
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... ABG #bloodgas #Acid
#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 ... H_def 0 mEq Acid ... HCO3d-HCO3m) Metabolic Acidosis ... 9 Respiratory Acidosis ... )/HCO3 Acid base
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
+ Respiratory Acidosis ... Alkalosis pH ↓ pCO2 ... pH ↑ pCO2 ↑ - ... alkalosis pH ↑ pCO2 ... alkalosis pH ↓ pCO2