3896 results
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
O2 is inspired) PAO2 ... Low SvO2 → Low PaO2 ... sepsis) - High PaO2 ... summary #pulmonary #differential ... #diagnosis #causes
Causes of Falsely Low Oxygen Saturation - Discordant SpO2 & PaO2 
 • Motion
 • Low
Causes of Falsely ... Discordant SpO2 & PaO2 ... Discordant #SpO2 #PaO2 ... #diagnosis #differential
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Differentials? ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... acidosis Step 5 - Differential ... Base #Gas #VBG #differential
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Uncommon Causes ... Edema (NCPE) - Differential ... dissolved in the PaO2 ... Any opioid can cause ... #differential #
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Causes of Lactate ... Lactic Acidosis - Differential ... The most common causes ... - Hypoxemia (PaO2 ... Acidosis #Elevation #Differential
Markers of Organ Dysfunction in Severe Sepsis 
Altered consciousness 
Confusion 
Psychosis 

Tachycardia 
Hypotension 
Altered CVP 
Altered
Altered CVP Altered PAOP ... Tachypnoea PaO2 ... <70mmHg SaO2 < ... 90% PaO2/FiO2 300%
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 Simplified ... /0.8)] - PaO2 Normal ... Hypoxia #hypoxemia #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
-PECO2))/PaCO2 ... age-corrected PAO2 ... /R) | Pa02 80- ... ))+(Pa02*0.0031) ... )-(CvO2) Pa02
Respiratory Oxygenation Cycle - Pathophysiology
PO2 and PCO2

By @rev.med

#Respiratory #Oxygenation #Cycle #circulation #pathophysiology
Pathophysiology PO2 ... and PCO2 By @rev.med
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 ... Diagnosis #Algorithm #Causes