A nurse is reviewing the ABGs of a client who has pneumonia. The nurse should identify which of the following findings is an indication of respiratory acidosis.
PaO2 86 mm Hg.
pH 7.4.
HCO3 16 mEq/L.
PaCO2 58 mm Hg.
The Correct Answer is D
Choice A rationale:
A PaO2 value of 86 mm Hg is within the normal range (80-100 mm Hg) and does not indicate respiratory acidosis. PaO2 measures the partial pressure of oxygen in arterial blood.
Choice B rationale:
A pH of 7.4 is within the normal range (7.35-7.45) and does not indicate respiratory acidosis. The pH reflects the acidity or alkalinity of the blood.
Choice C rationale:
An HCO3 (bicarbonate) level of 16 mEq/L is within the normal range (22-28 mEq/L) and does not indicate respiratory acidosis. HCO3 is a measure of the metabolic component of the body's acid-base balance.
Choice D rationale:
This is the correct choice. A PaCO2 value of 58 mm Hg is elevated and indicates respiratory acidosis. PaCO2 measures the partial pressure of carbon dioxide in arterial blood, and an elevated value suggests the presence of excess carbon dioxide, leading to acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D"]
Explanation
Choice A rationale:
Lurasidone does not necessarily need to be taken on an empty stomach. It can be taken with or without food.
Choice B rationale:
Avoiding grapefruit juice is essential with lurasidone as it can interfere with the drug's metabolism and increase the risk of side effects.
Choice C rationale:
Changing positions slowly is relevant for medications that can cause orthostatic hypotension, but lurasidone is not typically associated with this side effect.
Choice D rationale:
Lurasidone can cause insomnia in some individuals, so it is important for the client to be aware of this potential side effect. It is best taken in the evening to minimize this effect.
Choice E rationale:
While involuntary movements (extrapyramidal symptoms) can occur with some antipsychotic medications, lurasidone has a lower risk of causing these side effects compared to older antipsychotics. It is not a major concern with lurasidone treatment.
Correct Answer is A
Explanation
Choice A rationale:
Crackles are adventitious lung sounds that can be heard on auscultation and are commonly associated with pneumonia. They are caused by the movement of air through fluid-filled or collapsed alveoli, indicating inflammation and infection in the lungs.
Choice B rationale:
Crepitus is a different respiratory finding and is not typically associated with pneumonia. Crepitus is a crackling or grating sensation that can be felt under the skin, often caused by subcutaneous emphysema or gas trapped in the tissues, not within the lungs.
Choice C rationale:
Stridor is a harsh, high-pitched sound heard during inspiration and is usually indicative of upper airway obstruction, not pneumonia. It can be caused by conditions such as croup or anaphylaxis.
Choice D rationale:
Decreased fremitus is not a specific manifestation of pneumonia. Fremitus is the vibration felt when the patient speaks and is transmitted through the chest wall. In pneumonia, increased fremitus may be observed due to the consolidation of lung tissue with fluid or pus, not decreased fremitus.
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