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 D
Explanation
A. A pustule is a small elevation of the skin that contains pus, typically smaller than 0.5 cm.
B. A macule is a flat, discolored area of skin that is less than 0.5 cm in diameter, so it does not fit the description of elevated lesions larger than 0.5 cm.
C. A papule is an elevated, solid lesion that is less than 0.5 cm in diameter; lesions larger than this would not be classified as papules.
D. A patch is defined as a flat, non-palpable lesion larger than 0.5 cm, and psoriasis can present as patches. Thus, the lesions described fit this classification.
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.