NSG 223 - Medical-Surgical Nursing II
Exam 2
Question:
What does hypoventilation and retention of CO2 cause is patients who are hypoxemic?
Answer:
Hydrocarbonate + hypercapnia
Question:
What therapy should you expect to see a patient with hypoxemia on?
Answer:
Oxygen therapy FIRST, then oxygen therapy
Question:
When do you put oxygen on?
Answer:
When O2 level is 92% and below
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Question:
What can cause pulmonary edema?
Answer:
Left ventricular failure, acute MI, or chronic HF
Question:
What are early signs of pulmonary edema?
Answer:
Early stage is treated with diuretics and reducing preload by placing patients in an upright position with feet & legs dependent
Question:
How do you reduce preload in patients with pulmonary edema?
Answer:
By placing patient upright position with feet & legs dependent
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Question:
What is used to treat pulmonary edema?
Answer:
Oxygen — to relieve hypoxemia
Diuretics — promise excretion of sodium and water, furosemide or another loop diuretic given IV push or as continuous infusion
Vasodilators — Iv nitroglycerin or nitroprusside for symptom relief, contraindicated in patients who are hypotensive
Question:
What teaching is important for patients who are hypoxemic using oxygen therapy?
Answer:
Deep breathing techniques.
Question:
For what patients are vasodilators contraindicated for?
Answer:
Hypotensive
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Question:
Why are vasodilators are used in patients with pulmonary edema?
Answer:
IV nitroglycerin or nitroprusside for symptom relief
Question:
Patho phys of respiratory failure
Answer:
Inadequate gas exchange
Question:
Hypoxemia patho
Answer:
Decrease in arterial oxygen tension (PaO2) to less than 60 mmHg.
Decrease in arterial O2 saturations
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