Chapter 21 Flashcards
A shift in the oxyhemoglobin sat curve indicates change in the affinity of hemoglobin for oxygen. A _______ shift decreases it! whereas a _____ shift of the curve increases the binding of O2 to hemoglobin
Rightward; leftward
______ refers specifically to the exchange of carbon dioxide, whereas ______ refers only to the exchange of oxygen
Ventilation; oxygenation
When a person develops a fever, the cells metabolic rate increases and so does
His oxygen need
Which of the following factors causes a shift in the oxyhemoglobin curve, decreased the tissue oxygen delivery
Decreased body temperature
pCO2 is a respiratory
Acid
The pO2 measures oxygenation at sea level and should normally run greater than ____ mm Hg
80
True or false
The only predictable and reproducible relation in blood gases is between the pH and the pCO2
True
A patient who is hyperventilating because of heroin overdose is most likely experiencing which acid-base disorder
Respiratory acidosis
When the medic discovers his patient has _____ he should consider that the patient could have chronic respiratory or heart or GI disease and ask specific questions to point in the interview
Clubbing of the fingers or toes
Which of the following is an example of a perfusion related factor that may impair gas exchange in the lungs
Anemia
A person with multiple sclerosis or muscular dystrophy may, because of her disease, experience respiratory abnormalities that affect ventilation by
Impairment of the wall movement
The presence of grunting is usually a sign of respiratory distress that occurs primarily in infants and small toddlers when the child breaths
Out against a partially closed epiglottis
School nurse called EMS to transport student cause parent can’t. Student is 16yr female who has sore throat, difficulty swallowing, fever, and headache. She denies dyspnea and was recently treated for ear infection. What do you suspect is her problem
Pharyngitis
When obtaining focused history from patient with pulmonary disease, history of previous intubation is
A possible clue to a history of severe pulmonary disease
Typical findings associated with ____ include chest pain on affected side! increased respiratory rate! and a coughing
Spontaneous pneumothorax
Most common cause of spontaneous pneumothorax in adult is
A congenital bleb
The respiratory pattern that is characterized by alternating periods of apnea and deep, rapid breathing is called
Cheyne-Stokes respiration
The type of breathing characterized by a series of several short inspirations followed by long, irregular periods of apnea, and associated with increased intracranial pressure is called ___ breathing
Ataxic
Dispatched to nursing home for patient with severe respiratory distress. 78yr F with low SpO2. Physical exam finds distended neck veins, wet crackles in base of lungs, peripheral edema and as cites. RR 40, P 90 irregular, BP 176/98, cyanotic, warm, dry, based on findings what’s the patients problem
Right sided heart failure
Capnography measures ______, or how much carbon dioxide is exhaled
End-tidal CO2
_____ are the most common asthma triggers
Respiratory infections
Exercise or fast breathing is a trigger for asthma attacks, especially during ____ weather
Cold