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Which instruction by the nurse is inappropriate for teaching the proper technique for collection of a sputum specimen?
- A. Bring the sputum up from the lungs.
- B. Rinse mouth with water before expectorating in specimen cup.
- C. Collect specimens after meals.
- D. Send specimen to the lab without delay.
Correct Answer: C
Rationale: Collecting specimens before meals will avoid possible emesis from coughing after eating.
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In which way do leukotriene modifiers reduce the symptoms of asthma?
- A. By drying up mucus
- B. By causing bronchodilation and anti-inflammation effects
- C. By suppressing cough
- D. By liquefying mucus
Correct Answer: B
Rationale: Leukotriene modifiers reduce the symptoms of asthma by causing bronchodilation and anti-inflammatory processes.
The nurse recognizes that the reading in an arterial gas report indicates the amount of oxygen dissolved in the plasma.
Correct Answer: PaO2
Rationale: The PaO2 reading indicates the amount of oxygen dissolved in the plasma.
The nurse assessing an 11 year old who is having an asthma attack expects to hear which adventitious sounds?
- A. Friction rub.
- B. Expiratory wheezes
- C. Crackles.
- D. Absent breath sounds.
Correct Answer: B
Rationale: The narrowed bronchioles characteristic of an asthma attack would produce wheezes, which are high-pitched whistling sounds.
In which way does pursed lip breathing assist patients with asthma during an attack?
- A. It distracts the patient with breathing technique to reduce anxiety.
- B. It gets rid of CO2 faster.
- C. It decreases breathing efforts.
- D. It increases PACO2.
Correct Answer: C
Rationale: Pursed lip breathing decreases the effort of breathing.
A patient, age 22, is admitted with acute asthma. The patient shows a pulse oximetry level of SaO2 of 82%. How should the nurse interpret this?
- A. Only 82% of the red blood cells are able to use oxygen.
- B. There is only 82% of oxygen bound to the hemoglobin compared with the amount available.
- C. Eighteen percent of oxygen is not dissolved in the blood.
- D. The muscular respiratory effort is only 18% effective.
Correct Answer: B
Rationale: An SaO2 of 82% indicates that only 82% of the available oxygen is bound to the hemoglobin.