History and Physical Exam of the Pulmonary System Flashcards

1
Q

Air conduction tract

A

Upper: nasopharynx, oropharynx, larynx

Lower: trachea, primary bronchial tree bifurcation

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2
Q

Respiratory Tract

A

Smallest bronchioles and alveoli–gaseous exchange, mucous secreting cells

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3
Q

Physiology of movement of air into lungs

A

Inhaled air is hydrated, putting it into solution

Air is heated by underlying blood vessels

Air cells surrounded by capillaries allow for rapid diffusion of gases

Mucous secreting goblet cells excrete mucous that traps particular matter; mucociliary escalator move it up toward glottis

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4
Q

Mechanics of Respiration

A

Inspiration is active, controlled largely by diaphragm

Expiration is passive

When under stress, intercostals and abdominal muscles are recruited to assist

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5
Q

Amount of air moved in quiet breathing

A

500mL

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6
Q

Dyspnea

A

Subjective description of difficult, labored, or uncomfortable breathing

“Shortness of breath”

“Breathlessness”

“Not getting enough air”

Dyspnea is not dianosis of itself, should be considered a significant sx of another dx

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7
Q

Orthopnea

A

Dyspnea in the recumbant position

Most often the result of volume overload, PE, COPD

Documented in terms of number of pillows

Progression is of particular importance

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8
Q

Paroxysmal Nocturnal Dyspnea (PND)

A

Orthopnea that wakes the patient from sleep

May be associated with left sided heart failure (early pulmonary edema that comes on quickly)

AKA “cardiac asthma”

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9
Q

Wheezing

A

Musical respiratory sound that may be audible to patient and others

Suggestive of partial airway obstruction from:
**secretions
tissue inflammation
foreign body **

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10
Q

Tachypnea

A

Rapid breathing

May or may not be associated with dysnpea

RR >20

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11
Q

Bradypnea

A

Slow breathing

RR<12

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12
Q

Platypnea

A

Dyspnea in the upright position

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13
Q

Hyperpnea

A

Hyperventilation (basically)

Minute ventilation in excess of metabolic demand

Rapid and deep respirations; can lead to respiratory alkalosis

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14
Q

Carpopedal spasm

A

Associated with:

Hyperventilation (psychologic)

Hypocalcemia (physiologic)

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15
Q

Tactile Fremitus

A

Palpable vibrations transmitted through the bronchopylmonary tree to the chest wall when pt speaks (99)

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16
Q

Bronchophony/Egophony

A

The phenomena of increased volume and clarity of sounds transmitted through a solid or liquid opposed to through air

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17
Q

Chest Wall Expansion

A

Normal, symmetricular upward and outward movement of the ribs and chest wall during inspiration

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18
Q

Diaphragmatic Excursion

A

Movement of the diaphragm from its high resting position to its lower, flattened position when it is flexed in inspiration

Normal: 5-6cm on either side

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19
Q

Hypoxia

A

Inadequate oxygenation of the blood

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20
Q

Cyanosis

A

Bluish discoloration of the skin secondary to hypoxia or to inadequate peripheral circulation

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21
Q

Carboxyhemoglobin

A

Stable complex of CO and hemoglobin in RBCs

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22
Q

Pulse Oximetry

A

SaO2

Oxygenated hemoglobin absorbs more infrared light and allows more red light to pass through.

Deoxygenated (or reduced) hemoglobin absorbs more light adn allows more infrared light to pass through

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23
Q

Vesicular

A

Soft and low pitch.

Heard throughout inspiration, continue without pause throughout expiration, and then fade away about one third of the way through expiration

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24
Q

Bronchovesicular

A

Inspiratory and expiratory sounds are about equal length, sometimes with silent interval in between

Detecting differences in intensity and pitch is often easier during expiration

Louder because no compliance of these airways

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25
Bronchial
Louder and higher in pitch, with short silence between inspiratory adn expiratory sounds Expiratory sounds last longer than inspiratory sounds
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Normal breath sounds
Vesicular Bronchovesicular Bronchial \*Tracheal
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Adventitious Breath Sounds
Wheezing Rales/Crackles Rhonchi
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Crackles/Rales
Intermittent, non-musical, brief sounds Usually higher pitched and brief Usually occur first in inspiration adn later in both inspiration and expiration Described as fine or coarse
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Rhonchi
Relatively low pitched nad may be described as snoring Suggestive of secretions in larger airways May be inspiratory or expiratory (or both)
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Wheezing
Relatively high pitched with a musical quality Usually begin as an expiratory but with increasing severity can span entire respiratory cycle
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Questions related to Pulmonary Hx
Identify alarming symptoms such as associated chest pain. Acute or chronic? ROS: Pay particular attention to upper and lower respiratory tract, CV, and GI Ask about smoking, environmental, and occupational exposures Review current and prior medications and medication and environmental allergies. PMSoHx including previous history of similar complaints, asthma, sinusitis, recent respiratory infections, TB exposure, CAD, and esophageal disease. Family history of pulmonary disease like asthma, COPD and any exposure to second hand smoke.
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Pulmonary Risk Factors
**SMOKING!** **Aspiration –** stroke, NG tube, trouble protecting airway (i.e. alcoholic), dysphagia. **Debilitation –** alcohol misuse, extremes of age, immunosupression. **Chronic disease –** DM, renal failure, CHF, neuromuscular disorders like Guillian Barre’ or Myasthenia Gravis. **Pulmonary diseases –** Emphysema, Chronic Bronchitis, Asthma, Cystic Fibrosis, Hereditary A1 Antitrypsin deficiency.
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Inspection
Observe the shape of the chest and the movement of the chest wall Asymmetry or obvious deformities Retractions in ICS Inspect skin for cyanosis Nails for cyanosis or clubbing
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Variations in Chest Wall Shape
Barrell Chest Traumatic Flail Chest Funnel Chest (Pectus Excavatum)--depression in lower portion of sternum Pigeon Chest (Pectus Carinatum)--anteriorly displaced sternum Thoracic Kyphoscoliosis
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Palpation
Assess for tenderness, instability, or crepitus in trauma Assess for chest expansion Assess vocal fremitus * Increased fremitus--consolidated fluid magnifies vibration * Decreased fremitus--space b/w lung and chest wall magnified vibration
36
Auscultation
Pt breathing with mouth open, somewhat more deeply than normal Note intensity of breath sounds and any variations from normal vesicular breathing * Breath sounds are usually louder in the upper, anterior chest * Bronchovesicular breath sounds may be heard over the large airways, especially on the right Identify any adventitious sounds, noting: * Timing in respiratory cycle * Location on chest wall * Do they clear with coughing?
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Percussion
Percuss in the same areas as auscultation The heart produces areas of dull left of the sternum from the 3rd to 5th ICS Percuss diaphragmatic excursion
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History: Evaluation of common or concerning respiratory complaints
Cough Dyspnea Hemoptysis Wheezing Chest Pain
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Cough
A mechanical reflex that involves a deep inspiration, which increases lung volume; followed by muscle contraction against a closed glottis; and then sudden opening of the glottis Protective and helps clear mucus, secretions, and foreign objects from airway
40
Acute Cough
Lasts less than 3 weeks Usually self-limiting Most common causes: * URI * Lower respiratory tract infections * Acute exacerbation of chronic COPD * Allergic rhinitis * Rhinitis due to irritants * Irritants to the respiratory tree
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Chronic Cough
Persistent cough lasting longer than 3 weeks Most common causes: * COPD * Chronic sinus drainage * Asthma * GERD * Meds * Psychiatric
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Triggers of irritant receptors
Irritant--dust Allergens--ragweed, pollen Toxic substances--gastric acid Inflammation--asthma Cold air Smoke Rapid change in humidity or temperature Infection--viral vs. bacterial
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Acute causes of cough
URI, sinusitis LRI, bronchitis, pneumonia Allergic rxn Asthma Environmental Foreign body
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Chronic/Common Causes of Cough
Smoking Postnasal discharge Asthma GE Reflux ACE Inhibitors/ARBs
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Chronic/Uncommon Causes of Cough
CHF bronchiectasis Lung CA Emphysema Occupational Recurrent aspiration CF, interstitial
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Characteristics of a smoking induced cough
Usually worse in the AM, productive
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Characteristics of chronic bronchitic cough
usually productive
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Characteristics of rhinitis associated cough
associated with PND, nasal mucous drainage, often a hx of seasonal allergies
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Characteristics of an asthma related cough
Worse at night or after exercise Associated with episodic wheezing
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Characteristics of a cough associated with meds
beta blocker--makes asthma worse ACEI
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Characteristics of GE Reflux Associated Cough
H/o heartburn Worse in supine position Improves with antacids
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Alarming Symptoms
Cough with hemoptysis Cough, fever, and purulent sputum production Cough with excessive sputum production Cough with wheezing and dyspnea Cough with CP Cough with unintentional weight loss Cough, dyspnea, and lower extremity edema
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Dyspnea Rule out the bad stuff
MI PE significant infections CHF
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Dyspnea Hx Questions
Was the onset acute? * airway obstruction * PE * angioedema * allergic reaction Was the onset gradual? * CHF * AECB * Anemia Any current or previous diseases that may be an exacerbation of? Any recent periods of immobility (surgery)?
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Differential Diagnosis of Acute Dyspnea
**Pulmonary** * CHF, pulmonary edema * Exacerbation of COPD * PE * Aspiration/foreign body * Acute infections * Spontaneous pneumothorax **Cardiac** * Cardiac tamponade * Myocardial ischemia * Pericarditis/endocarditis * Mitral valve prolapse **Miscellanceous** * Anaphylaxis * Metabolic acidosis * Guillain Barre * Myasthenia Gravis **Psych** * Panic attack * Hyperventilation
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DDX of Chronic Dyspnea
**Pulmonary** * Asthma * COPD * Interstitial lung disease * Chronic pneumonia * Chronic pulmonary emboli * Pulmonary neoplasia * Pleural effusions **Cardiac** * Cardiomyopathies * CHF * Myocardial ischemia * Primary pulmonary HTN * Pericardial dz **Miscellaneous** * Deconditioning * Anemia * Neuromuscular dz **Psychiatric**
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Most immediately life threatening causes of dyspnea
Upper airway obstruction, foreign body, angioedema, hemorrhage Tension pneumothorax Pulmonary embolism Neuromuscular (MG, GB) Anaphylaxis
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Alarming Symptoms
Chest pain Pink, frothy sputum Swelling, hives, or wheezing Fever and sputum production Weakness/fatigue
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Signs to promptly identify imminent respiratory failure How to respond to these signs
Tachypnea, stridor, accessory muscle use. Inability to speak because of breathlessness (3-word dysnpnea) Agitation or lethargy as consequence of hypoxia Paradoxical abdominal wall movement due to diaphragmatic fatigue **What to do: ** Give oxygen Anticipate need for airway control and mechanical ventilation
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Hemoptysis Hx
Amount of hemoptysis Associated sxs Recent illnesses PMH Meds and Drugs Smoking Travel Occupational exposure
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Hemoptysis DDx
Infectious – **bronchitis**, **pneumonia**, **TB** Neoplastic – **lung CA** CV – **PE**, CHF, pulmonary HTN Hematologic - ↓ platelets, anticoagulant Rx Traumatic – foreign body, ruptured bronchus Iatrogenic – lung bx., bronchoscopy Inflammatory – **bronchiectasis**, cystic fibrosis GI- esophageal varicies ENT- following nasal trauma
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Alarming Sxs of Hemoptysis
Massive or severe hemoptysis is considered life threatening Chest imaging indicated Massive hemoptysis carries a mortality rate of 13-58%
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Wheezing History
Timing and details of onset Any previous attacks? Risk factors and associated disease * Occupational exposure * Immobility * PMH, asthma, CHF, smoking * FHx-atopy * Allergies * Medication Compare severity to baseline Modifying factors Associated sxs
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DDx of Wheezing
Asthma COPD, especially emphysema PE Anaphylaxis Infection: viral or bacterial Tumors Aspiration Mitral valve disease CHF
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Initial questions for pts with CP
PQRSTA Rule out the bad stuff: * MI * PE * TAA * Pneumothorax
66
Chest pain alarming sxs
Diaphoresis Dyspnea with hemotysis, fever, syncope, or paplpitations Tearing or ripping sensation radiating to the back CP with N/V Radiating to arms, shoulders, or jaw Sudden onset Sense of impending doom
67
Chest Pain DDx
Heart disease Structures of the thorax Lungs: PE, pneumothorax, pneumonia, pleuritis GI causes Musculoskeletal causes
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