18 results
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
Oxygen Delivery ... • Delivers oxygen ... • Delivers oxygen ... • Uses either ... #Pulmonary #Equipment
Oxygen Delivery Equation
DO2 = CO x {(1.39 x Hb x sO2) + (PaO2 x 0.03)}
DO2 =
Oxygen Delivery ... x 0.03)} DO2 = Rate ... of oxygen delivery ... #pathophysiology ... #pulmonary #apples
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Mask Oxygen Delivery ... uses a small valve ... specified flow rate ... #Oxygen #Delivery ... Devices #management #pulmonary
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
- insufficient oxygen ... delivered to tissues ... Hypoxemia #summary #pulmonary ... differential #diagnosis #causes ... #pathophysiology
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms 
Direct measurements
 ● Central venous pressure
– CVP]/CO) ● Pulmonary ... SVI = CI/heart rate ... SVI x 0.136) ● Oxygen ... delivery (DO2 = ... Hb x SaO2) ● Oxygen
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
crackles in the right ... - Amount of oxygen ... Edema: • Pathophysiology ... decreased respiratory rate ... • Pathophysiology
Increased Airway Pressure - Guidelines for Crises in Anaesthesia

Using these steps from start to end should
. ❶Adequate oxygen ... deliveryPause ... AND give 100% oxygen ... • Check heart rate ... o Aspiration, pulmonary
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
→ ↓ → →↑ Pulmonary ... Cardiac Work Index, Right ... Stroke Work Index, Right ... Delivery DO2 | ... Delivery Index
Shock Classification Types - Pathophysiology Comparison

Obstructive Shock:
 • Obstructive shock is characterized by a blockage in
Classification Types - Pathophysiology ... in blood flow caused ... Depends on the cause ... Pulmonary embolism ... and inadequate oxygen
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
Right Heart Catheterization ... hydraulic energy delivered ... equipment to measure oxygen ... nomogram-based estimates of oxygen ... Ahmed Ghoneem, MD MSc