245 results
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Evaluation and Differential ... and ~5 mmHg to pCO2 ... Differential Diagnosis ... Disorders #Evaluation #workup ... #Differential #
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders - Differential ... • Metabolic Acidosis ... • Respiratory Acidosis ... Respiratory Alkalosis (pCO2 ... AcidBase #Disorders #Differential
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... Respiratory Acidosis ... Medications, Central, ↑ CO2 ... nickmmark #acidbase #workup
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

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

Step 1: Gather the necessary data (Na+, CI-, HCO3-, PH, pCO2). Preferably, all
has a primary acidosis ... >40 patient's acidosis ... <40 patient's acidosis ... diagnoses using the differentials ... Worksheet #diagnosis #differential
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Differentials? ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... Step 5 - Differential ... Base #Gas #VBG #differential
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
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = PAO2 ... - PaO2 A-a gradient ... (Patm - 47) - (PaCO2 ... Level) [150- (PaCO2 ... Hypoxia #hypoxemia #differential
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
patient have an acidosis ... Look at the pCO2 ... Metabolic Equal (If pCO2 ... the change in pCO2 ... need to do more work