The nurse reviews the arterial blood gas results of a client and notes the following:
pH 7.45, [normal range: 7.35-7.45]
Paco2 of 30 mm Hg (30 mmol/L), [normal range: 35-45]
HCO3- of 20 mEq/L (20 mmol/L), [normal range: 22-26]
Which condition would the nurse analyze these results to indicate?
Metabolic alkalosis
Metabolic acidosis
Respiratory alkalosis
Respiratory acidosis
The Correct Answer is C
A. Metabolic alkalosis is characterized by a high pH and a high HCO3- level; this does not match the provided values.
B. Metabolic acidosis would show a low pH and a low HCO3-, which does not match the findings.
C. The pH is high (7.45) while the Paco2 is low (30 mm Hg), indicating respiratory alkalosis. The low HCO3- could be a compensatory mechanism but does not change the primary interpretation of respiratory alkalosis.
D. Respiratory acidosis would be indicated by a low pH and a high Paco2, which is not the case here.
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Correct Answer is B
Explanation
A. A pulse oximeter is used to measure oxygen saturation and is not relevant to cochlear dysfunction.
B. A hearing aid is appropriate for someone with cochlear dysfunction as it can help amplify sound and improve hearing, indicating the client is adapting to the hearing loss.
C. Eyeglasses are used for vision problems and do not relate to the function of the cochlear division of the vestibulocochlear nerve.
D. A bath thermometer is used to measure water temperature and is not relevant to auditory issues.
Correct Answer is C
Explanation
A. This description relates more to a sensory discrimination test, not graphesthesia.
B. This option does not accurately describe the graphesthesia test, which involves identifying shapes or numbers rather than just touch location.
C. In the graphesthesia test, the client closes their eyes while the nurse uses a blunt object to write a number or shape in the client's palm, and the client must identify what was written. This assesses the ability to recognize letters or numbers drawn on the skin.
D. This option describes a two-point discrimination test rather than graphesthesia, which focuses on identifying drawn shapes or numbers.