35 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Respiratory Acidosis (pCO2 ... • Metabolic Alkalosis ... • Respiratory Alkalosis ... (pCO2 < 35 mmHg ... Diagnosis #Algorithm #Causes
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... ↑ ↑ Metabolic alkalosis ... - Rapid saline infusion
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
average settings • Causes ... HYPOVENTILATION • Rising PaCO2 ... gas equation • Causes ... • Most common cause ... to hypoxemia • Causes
#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
2)| Metabolic Alkalosis ... Respiratory Alkalosis ... for each 10 - in pCO2 ... for each 10 J in pCO2 ... pk + log (HCO3/(PCO2
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Coma, Metabolic Alkalosis ... Hemorrhage • Impaired Diffusion ... Differential #Diagnosis #causes
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
lung disease Caused ... either due to a diffusion-perfusion ... • Orthopnea - PaO2 ... Oxygenation defect - PaO2 ... supplemental oxygen if PaO2
Constrictive Pericarditis on POCUS Echocardiogram - Apical 3-Chamber View

Young Lupus patient admitted to hospital new onset
Pericarditis on POCUS ... could pinpoint the cause ... has pericardial effusion ... with similar peri effusion ... Pericarditis #CP #POCUS
Type A Aortid Dissection - Suprasternal View

Type A Aortic Dissection (TAD), present on this suprasternal view
insuff, pericardial effusion ... supports PE or other causes ... #Notch #Aorta #POCUS
Constrictive Pericarditis on POCUS Echocardiogram - Subcostal View

Young Lupus patient admitted to hospital new onset HFpEF.
Pericarditis on POCUS ... could pinpoint the cause ... has pericardial effusion ... similar sized effusion ... Pericarditis #CP #POCUS
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Possible small plural effusion ... pleura in severe cases ... Possible bilateral effusion ... submassive PE) POCUS ... #signs #Lung #POCUS