Exam 2 - Alterations Of Pulmonary Function Flashcards
Uncomfortable breathing; shortness of breath
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Dyspnea
Difficulty breathing while laying down
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Orthopnea
Gasping for air at night
Paroxysmal nocturnal dyspnea
What is dyspnea?
Uncomfortable breathing; shortness of breath
What can cause dyspnea?
- Anxiety
- Rapid labored breathing
- Obesity
(Not necessicarily related to disease)
What is orthopnea?
Horizontal dyspnea (Trouble breathing while laying down)
What is paroxysmal nocturnal dyspnea?
Gasping for air at night
Must stand up for relief
What causes orthopnea?
Occurs during heart failure
What causes paroxysmal nocturnal dyspnea (PND)?
Left ventricular failure
What would you ask a patient who you suspect has PND?
“Do you wake up at night gasping for air?”
High CO2?
Hypercapnia
What actually wakes the patient up during PND?
Hypercapnia (not enough circulating oxygen)
How many breaths per minute is normal breathing?
8-16 breaths per minute
Increased ventilatory rate with no expiratory pause
Kussmauls
What induces Kussmauls?
Strenuous exercise
Metabolic acidosis
Altering periods of deep and shallow breathing, with apnea
Cheyene-Stokes
What causes Cheyne-Stokes?
Traumatic brain injury
Or any condition that slows blood flow to brain
Breathing pattern in someone with Kussmauls?
Increased rate, no expiratory pause
Breathing pattern of someone with Cheyne-Stokes?
Altering periods of deep and shallow breathing With apnea (apnea lasting 15-60 seconds)
WHEN does Cheyne-Stokes occur?
Right before death (body is trying to reset breathing)
Death rattle follows, then death
Inadequate gas exchange of alveoli
Hypoventilation
What is hypoventilation?
Inadequate gas exchange and alveolar level
What does hypoventilation result in?
Hypercapnia (that further decreases breathing)
How to help a patient with hypoventilation
Have them take deep breaths
This gets rid of some carbon dioxide