Sachin Shared "Respiratory" - 108 Picmonics
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Respiratory
Respiratory Anatomy
- Characteristics
- Nasal Cavity
- Hair Filters
- Mucus Filters and Moistens
- Capillaries Warm
- Pharynx (Throat)
- Larynx (Voice Box)
- Cilia Expel Mucus and Dust
- Trachea
- Bronchi
- Alveoli
2 mins
Pathways through the Diaphragm
- Characteristics
- T8 Level (Caval opening)
- Inferior Vena Cava
- T10 Level (Esophageal Opening)
- Esophagus
- Vagus Nerve
- Esophageal Branches Left Gastric Vessels
- T12 Level (Aortic opening)
- Aorta
- Thoracic Duct
- Azygos Vein
2 mins
Alveolar Gas Exchange
- Characteristics
- Pulmonary Artery Blood is O2-Poor, CO2-Rich
- Two-Cell Thick Air-Blood Barrier
- CO2 Diffuses Into Air
- O2 Diffuses Into Blood
- Gases Equilibrate
- Pulmonary Vein is O2-Rich, CO2-Poor
- Thermoregulation
2 mins
Alveolar Gas Equation
- Equation
- Partial Pressure of Alveolar Oxygen (PAO2)
- Partial Pressure of Oxygen in the Inspired Air (PIO2)
- PIO2 Normally Approximated = 150 mmHg
- Arterial Partial Pressure of CO2 (PaCO2)
- Respiratory Quotient (R)
- R Normally Approximated = 0.8
- PAO2 = PIO2 - (PaCO2/R)
1 min
Physiologic Dead Space (VD)
- Tidal Volume (Vt)
- Partial Pressure of Arterial CO2 (PaCO2)
- Partial Pressure of CO2 in Expired Air (PECO2)
- VD = VT x (PaCO2-PECO2) / PaCO2
2 mins
A-a Gradient
- Partial pressure of alveolar oxygen (PAO2)
- Partial Pressure of Arterial O2 (PaO2)
- Normal 10 to 15 mmHg
- Hypoxemia with an Abnormal A-a Gradient
- Diffusion problem
- Shunting (Low V/Q)
- Dead space (high V/Q)
1 min
Winter's Formula
- Evaluates Respiratory Compensation
- Used in Metabolic Acidosis
- Equation
- (HCO3 x 1.5 ) + 8 plus-minus 2 = PCO2
- Steps
- Bicarbonate (HCO3) x 1.5
- + 8
- ± 2
- = Expected Value for PCO2
2 mins
Methemoglobinemia Diagnosis and Management
- Clinical Features
- Cyanosis
- Respiratory Distress
- Headache
- Lethargy
- Diagnosis
- "Chocolate-colored Blood"
- Decreased Oxygen Saturation
- Normal Partial Pressure of Arterial O2 (PaO2)
- Management
- Identify Triggers
- Methylene Blue
- Vitamin C
- Exchange Transfusion
3 mins
Light's Criteria
- Use
- Determines Transudative vs. Exudative Source of Pleural Effusion
- Exudate if (At Least One of the Following):
- Effusion/Serum Protein Ratio > 0.5
- Effusion/Serum LDH Ratio > 0.6
- Effusion LDH > Two-thirds Upper Serum LDH Range
2 mins
Lung Sounds - Wheezes
- Location
- Throughout Lung
- Description
- High Pitched
- Sounds Like
- Musical
- Cause
- Air Moving through Narrowed Airways
38 secs
Lung Sounds - Crackles
- Location
- Lower Lobes
- Description
- Fine/Coarse
- Sounds Like
- Fine: Twisting Hair through Fingers
- Coarse: Velcro
- Cause
- Collapsed Small Airways and Alveoli "Popping Open"
1 min
Lung Sounds - Rhonchi
- Location
- Trachea and Bronchi
- Description
- Low Pitched Rumbling
- Sounds Like
- Gurgling
- Cause
- Narrowed Airway
- Secretions or Bronchospasm
49 secs
Lung Sounds - Pleural Friction Rub
- Location
- Anterior Lateral Lung
- Description
- Dry, Rubbing, or Squeaking
- Sounds Like
- Rubbing a Balloon with Finger
- Cause
- Inflamed Pleura
50 secs
Restrictive vs. Obstructive Lung Diseases
- Restrictive Lung Disease
- Decreased Lung Volume
- FEV1/FVC Ratio Normal to Increased
- Obstructive Lung Disease
- Increased Lung Volume
- Decreased FEV1/FVC Ratio
2 mins
Obstructive Lung Disease
- Blocked Airflow
- Increased residual volume
- V/Q Mismatch
- Decreased forced vital capacity (FVC)
- Decreased FEV1/FVC ratio
- Asthma
- Bronchiectasis
- Chronic bronchitis
- Emphysema
51 secs
COPD Overview (Chronic Obstructive Pulmonary Disease Overview)
- Causes
- Inhaled Toxins
- Smoking
- AAT Deficiency
- Assessment
- Emphysema
- Chronic Bronchitis
- Asthma
- Considerations
- Spirometry
- Slow Progression
2 mins
Chronic Bronchitis
- Pathophysiology
- Chronic Inflammation of Bronchi
- Signs and Symptoms
- Early-Onset Cyanosis
- Blue Bloaters
- Productive Cough
- Wheezing
- Chronic Obstructive Pulmonary Disease (COPD)
- Late-Onset Dyspnea
- Crackles
- Diagnosis
- Reid Index > 50%
2 mins
Chronic Bronchitis Interventions
- Tripod Position
- Humidified Oxygen
- Pursed Lip Breathing
- Increase Fluid Intake
- ABGs
- Early Detection of Exacerbation
- Considerations
- Lowest O2 Therapy
- Assisted Ventilation
- Increased Infection Risk
2 mins
Emphysema
- Clinical Features
- Pink Puffer
- Exhale through Pursed Lips
- Barrel Chest
- Pathophysiology
- Obstructive Lung Disease
- Increased Lung Compliance
- Types
- Centriacinar
- Panacinar
2 mins
Bronchiectasis
- Obstructive Lung Disease
- Chronic Necrotizing Infection
- Permanent Airway Dilation
- Poor Ciliary Motility
- Kartagener's Syndrome
- Cystic Fibrosis
- Allergic Bronchopulmonary Aspergillosis
- Hemoptysis
- Increased Sputum
2 mins
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