10 results
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
Acid Base and Blood ... Respiratory Acidosis ... anion gap metabolic ... gap metabolic acidosis ... #respiratory #bloodgas
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... Respiratory or Metabolic ... Metabolic acidosis ... Nephrology #ABG #bloodgas ... #Acid #Base #Gas
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders ... pH < 7.35) • Metabolic ... Acidosis (HCO3 ... Acidosis (pCO2 ... #Causes #Compensation
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
3) Now, look at ... the gas. ... Metabolic Acidosis ... Metabolic Acidosis ... retention • Respiratory
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
Blood Gas (ABG) ... Interpretation and Acid-Base ... more work = ANION GAP ... Interpretation #BloodGas ... #Respiratory #Metabolic
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... Losses: • Normal Acid-Base ... Metabolic acidosis ... acidosis: Proximal ... #causes #potassium
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
- Normal/low ... metabolic acidosis ... • Anion gap metabolic ... poisoning • Normal acid-base ... #causes #urinary
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
alkalosis • Normal/low ... Anion gap metabolic ... poisoning Normal acid-base ... the indicated causes ... of anion gap metabolic
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Intake: • Low ... decarboxylation/gas ... secretion • Acid-base ... components of acid-base ... metabolic acidosis
#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
ACID-BASE AG ... (HCO3d-HCO3m) Metabolic ... Acidosis ІнСО3 ... Acidosis ТРСО2 ... base Equation