87 results
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 ... Embolism, Obstructive Lung ... , Interstitial Lung ... #differential #diagnosis
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
Alkalosis pH ↓ pCO2 ... acidosis pH ↑ pCO2 ... alkalosis pH ↑ pCO2 ... Interpretation #AcidBase ... #Diagnosis #Compensation
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
- Differential Diagnosis ... Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... < 35 mmHg) #AcidBase ... #Differential #Diagnosis
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2, pCO2 ... #Diagnosis #Nephro ... #AcidBase #Acidosis
PLACO Mnemonic - Approach to Acid-Base Disorders
P - Determine the pH
L - Labs: PCO2 & HCO3
A
pH L - Labs: PCO2 ... jadav_md #PLACO #AcidBase ... #Acid #Base #diagnosis
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... MD @nickmmark #acidbase ... workup #algorithm #diagnosis
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
35-45 mmHg • PaO2 ... - Differential Diagnosis ... or restrictive lung ... MDaniyalHashmi1 #AcidBase ... Interpretation #Diagnosis
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
lobar collapse, lung ... inspired oxygen (PaO2 ... - 200 mm Hg < PaO2 ... - 100 mm Hg < PaO2 ... Definition #Criteria #Diagnosis
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 ... MSc @AmyChung #AcidBase ... Acidosis #Alkalosis #Diagnosis
Focused POCUS Lung and Cardiac Ultrasound Exams in COVID-19 Patients
1. Turn machine on / Enter patient
Focused POCUS Lung ... views of right lung ... and 4 views left lung ... #Focused #POCUS ... #LungExam #diagnosis