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 C
Explanation
A. An audiometer is used to assess hearing ability and is not appropriate for examining the tympanic membrane.
B. An ophthalmoscope is used to examine the interior of the eye and cannot assess tympanic membrane mobility.
C. A pneumatic otoscope is specifically designed for examining the tympanic membrane and allows for assessment of its mobility by using air pressure.
D. A tuning fork is used to evaluate hearing and vibration sense, not tympanic membrane mobility.
Correct Answer is ["B","D","E","F"]
Explanation
A. Hypoactive oil and sweat glands: Pregnancy typically causes increased activity in oil and sweat glands, not decreased.
B. Increased skin pigmentation: Increased pigmentation is common during pregnancy, often affecting areas like the areolas and abdomen.
C. Persistent migraine headaches: While some women may experience headaches in pregnancy, they are not an expected or typical finding and may require further assessment.
D. Facial edema: Mild facial edema can occur as pregnancy progresses, especially due to increased blood volume and fluid retention.
E. Melasma: Melasma, or "mask of pregnancy," is a common finding characterized by dark patches on the face due to hormonal changes.
F. Linea nigra: Linea nigra is a dark line that often appears on the abdomen during pregnancy as a result of hormonal changes.