12 results
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
Patterns of pulmonary ... dysfunction revealed ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops ... #Normal #pulmonary
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Loops - Common Patterns ... Normal B. ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops ... #Patterns #pulmonary
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Pulmonary Function ... Flow Volume Loop Patterns ... and persevered FEV1 ... nickmmark #FlowVolume ... #PFTs #patterns
Asthma
Chronic lung disease characterized by airway inflammation, airway and variable expiratory air flow obstruction
There are 2
obstruction: • FEV1 ... 0.70 or lower • FEV1 ... lower limit of normal ... Reversibility on spirometry ... Asthma #diagnosis #pulmonary
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Exam: Usually normal ... spirometry - FEV1 ... bronchodilator, Spirometry ... spirometry - FEV1 ... comparison #Diagnosis #pulmonary
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
Diastolic Function ... diastolic filling patterns ... moderate diastolic dysfunction ... velocities, PVF: pulmonary ... atrium, PASP: pulmonary
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
Pulmonary arterial ... infection - Portal ... disease Systolic dysfunction ... Diastolic dysfunction ... and obstructive pattern
Chronic Thromboembolic Pulmonary Hypertension (CTEPH) and Pulmonary Thromboendarterectomy
Chronic Thromboembolic Pulmonary Hypertension
Definition: mean pulmonary-artery pressure > 25mmHg
Decreasing right heart function ... mosaic parenchymal pattern ... variables, WHO functional ... variables, WHO functional ... Promising inhaled and oral
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
» HEMODYNAMIC PATTERNS ... /EDV Ejection Fraction ... CI/BVI Blood Flow ... physiologic) FVC FEV1 ... Capacity >3.0 L FEV1
Peripartum Cardiomyopathy - Summary
1. Definition
 • Towards the end of pregnancy to 5 months postpartum
Idiopathic LV dysfunction ... cardiomyopathy • Pulmonary ... thrombus, RV systolic dysfunction ... sx overlap with normal ... studies show no ↓ LV function