255 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Intracardiac, Pulmonary ... Hepatopulmonary Syndrome ... Gradient #alveolar #arterial ... #pulmonary #Hypoxia
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 ... +2PDP)/3 Mean Pulmonary ... MPAP-WP)*79.92)/CO Pulmonary ... MPAP-WP)*79.92)/CI Pulmonary ... = 1.36 cmH20 PULMONARY
Capnography
Measurement of exhaled carbon dioxide can be used to confirm ETT placement, for safer procedural sedation,
monitor cardiac & pulmonary ... • PvCO2 - Mixed ... venous CO2 • ... PaCO2 - Arterial ... patterns #diagnosis #pulmonary
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
O2 is inspired) PAO2 ... oxygen dissolved in arterial ... hemoglobin in arterial ... oxygen content of arterial ... Hypoxemia #summary #pulmonary
Hepatopulmonary Syndrome
HPS - Diagnosis:
 1. Patients with liver disease
 2. Alveolar-arterial oxygen gradient (AaP02) >15 mmHg
Hepatopulmonary Syndrome ... Alveolar-arterial ... Severe HPS: ≥ 50 PaO2 ... Hepatopulmonary #Syndrome ... #diagnosis #management
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Differential Diagnosis Algorithm ... Arterial Hypertension ... Hypoventilation Syndrome ... Differential #Diagnosis #Algorithm ... #Causes #Pulmonary
Prostanoid prescribing and management in Pulmonary Arterial Hypertension (PAH)
Oral Prostanoids:
 - Selexipag
 - Treprostinil
Inhaled Prostanoids
 -
prescribing and management ... in Pulmonary Arterial ... #prescribing #Pulmonary ... #PAH #Management ... #Algorithm #treatment
Basics of Waveform Capnography
Waveform capnography assesses ventilation by monitoring exhaled carbon dioxide
Can use measurement and morphology
data regarding pulmonary ... Assessing for CO2 ... EMPHYSEMA - Arterial ... output state - Pulmonary ... patterns #diagnosis #pulmonary
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Respiratory Distress Syndrome ... consistent with pulmonary ... lung collapse, or pulmonary ... by the ratio of arterial ... Respiratory #Distress #Syndrome
Non-Invasive Ventilation (BiPAP) Algorithm - Indications and Contraindications
Indications for NIV:
 • COPD - pH <7.35, pCO2
Ventilation (BiPAP) Algorithm ... COPD - pH <7.35, pCO2 ... VC < 1 even if pCO2 ... Ventilation #BiPAP #Algorithm ... #criticalcare #management