Nurs 401 Final Exam Study Guide: Pt. 1 (Questions And
Complete Answers)
Hypoxemia Right Ans - decrease in the arterial oxygen tension in the blood
Signs of hypoxemia Right Ans - change in mental status, dyspnea, increase
in BP, changes in HR, dysrhythmias, central cyanosis, diaphoresis, and cool
extremities
Hypoxia Right Ans - decrease in oxygen supply to the tissues and cells
Signs of long standing hypoxia (COPD and CHF) Right Ans - drowsiness,
fatigue, apathy, inattentiveness
Oxygen toxicity Right Ans - caused by an overproduction of oxygen free
radicals, which are by products of cell metabolism
long term complications of oxygen toxicity Right Ans - alveolar capillary
membrane leading to pulmonary edema, progressing to cell death
Hypoxic drive theory Right Ans - administration of a high level of oxygen
concentration removes the respiratory drive that has been created largely by
the patient's chronic low oxygen tension
goal of chest physiotherapy Right Ans - remove bronchial secretions,
improve ventilation, and increase efficiency of respiratory muscles
what does chest physiotherapy include? Right Ans - postural drainage,
chest percussion, vibration, and breathing retraining
Breathing retraining for COPD Right Ans - pursed lip and diaphragmatic
breathing
Pneumothroax Right Ans - air fills pleural space (space between visceral
and parietal pleura of the lung)
-a collapsed lung
, Signs of pneumothorax Right Ans - dyspnea (labored breathing), one sided
chest pain, absent or decreased breath sounds
Pulmonary embolism Right Ans - blood clot breaks off and circulates
through the venous system
-ventilation perfusion mismatch --> cyanosis
-alveolar dead space is increased. area is ventilated by receives little or no
blood
signs of pulmonary embolism Right Ans - dyspnea (most common
symptom)
Tachypnea, tachycardia, and anxiety
Pulmonary embolism- nursing role Right Ans - -death occurs within 1 hour
after symptoms onset- early detection is important
-prevent- leg exercises, ambulation, anti-embolism stockings
-oxygen, IV access, ECG, blood draw
Pleural effusion Right Ans - collection of fluid in between lungs and lining
that surrounds lungs
-caused by irritation, infection, or cancer
signs of pleural effusion Right Ans - chest percussion- dullness over
involved area, diminished breath sounds, possibly a friction rub
Pleural effusion- nursing management Right Ans - support medical
regimen
Breathing interventions Right Ans - assess for underlying problems,
position high, oxygen as needed
Atelectasis - what is it? Right Ans - closure or collapse of alveoli
Atelectasis- causes Right Ans - many causes: foreign body, tumor, altered
breathing pattern, pain, prolonged supine position, surgical procedure
Atelectasis- who is at risk? Right Ans - post op patients (pain, analgesic
agents- shallow breathing)
-impaired cough mech or bedridden
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