46 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 ... /0.8)] - PaO2 Normal ... Disease and more • Diffusion ... Hypoxia #hypoxemia #differential
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders ... - Differential ... Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... AcidBase #Disorders #Differential
Acid Base Disorders Worksheet

Step 1: Gather the necessary data (Na+, CI-, HCO3-, PH, pCO2). Preferably, all
Acid Base Disorders ... CI-, HCO3-, PH, pCO2 ... diagnoses using the differentials ... joshsteinbergMD #Acid #Base ... Worksheet #diagnosis #differential
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... Differentials? ... 35-45 mmHg • PaO2 ... - Rapid saline infusion ... bloodgas #Acid #Base
POCUS appearance of Pleural thickening at right base. (patient was referred as possible pleural effusion, referral
POCUS appearance ... thickening at right base ... possible pleural effusion ... Pleural #Thickening #POCUS
#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
Osmolar Gap ACID-BASE ... pCO2 = 1.5 (HCO3 ... )/HCO3 Acid base ... Pa02 < 70 mmHg on ... < 50 mmHg Pa02
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Approach to Acid Base ... Evaluation and Differential ... and ~5 mmHg to pCO2 ... Differential Diagnosis ... Evaluation #workup #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... HYPOVENTILATION • Rising PaCO2 ... syndrome, OSA DIFFUSION ... of reversible diffusion ... Failure #hypoxia #Differential
Dyspnea - Considerations with Malignancy
Directly Malignancy Related:
 - Lymphangitic spread to lung
 - Malignant pleural effusion
Malignant pleural effusion ... Malignant pericardial effusion ... Hypercoagulable -> PE Based ... dyspnea #algorithm #differential
Priority-based management algorithm for the undifferentiated patient in PEA arrest
PEA (no pulse by manual palp +
Priority-based management ... Cardiac POCUS 3 ... A-line placement - POCUS ... Start vasopressor infusion