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Terms in this set (30)
What is the primary function of cough?
by expelling substances irritating to airways
What is a potential complication of improper cough mechanism?
Aspiration --> Life threatening pneumonia
True or false: Coughs can be voluntary and involuntary
What are the phases of cough?
1. Inspiratory - TLC
2. Expiratory w/ glottic closure (valsalva)
3. Release of air
What is shear force in context of cough?
Forced exhalation produces a force along tracheobronchial walls to remove and expel mucous and other particles
Definition of acute cough
cough present for < 3 weeks
Definition of chronic cough (per class)
cough present for > 3 weeks
What are 3 infectious causes of acute cough?
- viral URIs
- sinus infections
What is the most common reason for non-infectious acute cough?
flare-ups of chronic conditions
e.g. COPD, asthma, allergies
True or False: Chest imaging has an important role in acute cough
False: chronic cough
What exposure is the most common cause of chronic cough?
What medication is associated with chronic cough?
What is most often defective in patients with GERD-induced cough?
lower esophageal sphincter
What diseases should be suspected as underlying causes in chronic cough that improves with bronchodilators, anti-cholinergic or steroids?
What makes cough due to GERD difficult to diagnose?
a sizable number of Pt with GERD cough do not have reflux or heartburn symptoms
What are associated symptoms of a cough related to lung cancer?
- loss of appetite
- unexplained weight loss
What tool is usually of minimal assistance in the Dx of acute cough?
-- exception to this is pneumonia
What temporality feature is often seen in smoker's cough?
productive cough in the morning
What are some causes of ineffective cough?
2. nerve or muscle damage
3. spinal cord injury
4. altered mucous thickness
5. CF (or immotile cilia)
What are the 3 most common causes for chronic cough?
1. post nasal drip (1/3 - 1/2)
2. asthma (1/4)
3. GERD (1/5)
What is the most common cause of chronic cough?
post nasal drip
What are 3 common causes of post nasal drip?
2. non-allergic rhinitis
3. allergic rhinitis
Dripping into the throat, tickle in the throat, a frequent need to clear the throat, cough, congestion and hoarseness all point to what cause of cough?
post nasal drip
Heartburn, sour taste, discomfort and chest pain are symptoms of what cause of cough?
note: GERD Sx may be absent and patient only has a cough
What is the most common type of cough seen with GERD?
What are 3 ways to Dx GERD as a cause of chronic cough?
1. barium swallow
2. esophageal pH monitoring
3. therapeutic trial with acid blocker
Wheezes, dyspnea, chest tightness, and cough point to what cause of chronic cough?
What are situations in which asthma may be worse?
Where is a Zenker's diverticulum classically located?
upper 1/3 of esophagus
-- outpouching that can cause cough
Chronic Bronchitis is most frequent in the ____________ time
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