26 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
HCO3 12:10 • Respiratory ... Acidosis (pCO2 ... HCO3 7:10 • Respiratory ... Alkalosis (pCO2 ... < 35 mmHg) #AcidBase
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2 ... , pCO2) move in ... it is a primary respiratory ... Diagnosis #Nephro #AcidBase ... Alkalosis #Metabolic #Respiratory
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
- Metabolic + Respiratory ... acidosis pH ↑ pCO2 ... ↓ - Respiratory ... ↑ - Respiratory ... Interpretation #AcidBase
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 ... production Respiratory ... MD @nickmmark #acidbase
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
Look at the pCO2 ... Metabolic Equal (If pCO2 ... the change in pCO2 ... calculate the expected pCO2 ... MSc @AmyChung #AcidBase
Acid-Base Disorders - Expected Compensation Equations

Metabolic Acidosis:
 • pCO2 = 1.5 x HCO3 + 8 ±
Acidosis: • pCO2 ... ↑ 0.7 Respiratory ... ∆ HCO3 ↑ 3 Respiratory ... #Acid #Base #AcidBase ... Compensation #Metabolic #Respiratory
Basics of Waveform Capnography
Waveform capnography assesses ventilation by monitoring exhaled carbon dioxide
Can use measurement and morphology
different phases of respiratory ... Assessing for CO2 ... PHASE I - Inspiratory ... Transition as CO2 ... oscillations - Sign
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Respiratory or Metabolic ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... MDaniyalHashmi1 #AcidBase
Hoover's sign on Physical Exam
Paradoxical retraction of the lower intercostal spaces on inspiration
Pulmonary hyperinflation → flattening
Hoover's sign on ... this occurs, the inspiratory ... Jcortesizaguirr #Hoovers #sign ... PhysicalExam #Clinical #Video ... #Breathing #Respiratory
Tracheal Descent Sign

Paradoxical inward movement of the trachea during inspiration. Seen in this COPD patient in
Tracheal Descent Sign ... patient in severe respiratory ... Video via Dr. ... Tracheal #Descent #Sign ... #clinical #video