104 results
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Base Disorders - Evaluation ... more acidotic or alkalotic ... and ~5 mmHg to pCO2 ... Base #Disorders #Evaluation ... #workup #Differential
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
HCO3 < 24mmol/L) CO2 ... Respiratory Acidosis (pCO2 ... • Metabolic Alkalosis ... • Respiratory Alkalosis ... (pCO2 < 35 mmHg
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... production Respiratory alkalosis ... - Contraction alkalosis ... nickmmark #acidbase #workup
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
pH ↓ pCO2 ↓ ... acidosis pH ↑ pCO2 ... pH ↑ pCO2 ↓ - ... Respiratory alkalosis ... pH ↓ pCO2 ↑ -
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2 ... , pCO2) move in ... AcidBase #Acidosis #Alkalosis
Acid Base Disorders Worksheet

Step 1: Gather the necessary data (Na+, CI-, HCO3-, PH, pCO2). Preferably, all
CI-, HCO3-, PH, pCO2 ... has a primary alkalosis ... . 3a: If pCO2 ... >40 patient's alkalosis ... is -Y patient's alkalosis
Perform computations online at:
ScyMed.com
6th ED
ICU-card
«ICU, Formulas & Drugs»
HEMODYNAMIC PATTERNS
Condition
SAP
CVP

PAP PCWP

CO C(a-v)02 PVR

SVR
Hypovolemic shock
↓
↓
↓
↓
↓
↑
↑
↑
Cardiogenic shock
↓
1
↑
1

1
↑

Septic shock
↓
↓
↓
↓
↑
↓
↓
↓
Cardiac Tamponade
.
↑
↑
1
↓

→
↑
RV
Index CARDIAC WORK ... RCWI Cardiac Work ... 0.0144 Cardiac Work ... Ventricular Stroke Work ... Ventricular Stroke Work
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
acidosis or an alkalosis ... Look at the pCO2 ... concomitant respiratory alkalosis ... need to do more work ... Metabolic #Acidosis #Alkalosis
Blood Gas Analysis and Interpretation
STEPS TO ANALYSIS
1. Look at PH. Alkalotic or acidotic?
Alkalotic or acidotic ... - If alkalotic, ... then it is an alkalosis ... - pCO2 (respiratory ... component) - alkalotic
Tachypnea - Evaluation and Differential Diagnosis Algorithm
Alkalemia:
 • Acute Respiratory Alkalosis
 • Chronic Hypercapnic Respiratory Failure
Tachypnea - Evaluation ... Acute Respiratory Alkalosis ... superimposed Respiratory Alkalosis ... Compensation or Alkalosis ... 3rEtbK8 #Tachypnea #Evaluation