The client's laboratory results indicate that the serum potassium level is 2.5 mEq/L (2.5 mmol/L). Which action should the nurse take?
Reference Range: Potassium (K+) [3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L)]
Prepare to administer a glucose, then insulin, then potassium infusion.
Instruct the client to increase daily intake of potassium rich foods.
Inform the healthcare provider of the need for potassium replacement.
Change the plan of care to include hourly urinary output measurements.
Change the plan of care to include hourly urinary output measurements.
The Correct Answer is C
Rationale:
A. The combination of glucose and insulin is used to shift potassium into cells, which would lower serum potassium levels further; this is not appropriate for treating hypokalemia.
B. Increasing dietary intake of potassium is important but not sufficient to correct a serum potassium level as low as 2.5 mEq/L, which requires more immediate intervention.
C. A potassium level of 2.5 mEq/L is critically low and can lead to life-threatening cardiac arrhythmias. The healthcare provider should be informed immediately to initiate potassium replacement therapy, likely via intravenous infusion.
D. Hourly urinary output measurements may be useful but are not the immediate priority in treating severe hypokalemia.
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Correct Answer is C
Explanation
Rationale:
A. Pneumonia typically presents with fever, productive cough, and lung consolidation, not just wheezing and low oxygen saturation.
B. Pneumothorax usually causes sudden sharp chest pain and decreased breath sounds on the affected side, rather than wheezing and prolonged expiration.
C. Asthma is characterized by wheezing, prolonged expiration, and low oxygen saturation due to bronchoconstriction and inflammation. The client's symptoms are consistent with an asthma exacerbation.
D. Bronchitis presents with a productive cough and sometimes wheezing but does not typically cause such severe hypoxemia or a pronounced increase in respiratory rate as seen here.
Correct Answer is D
Explanation
Rationale:
A. The clavicle is an important landmark but not the ideal starting point for auscultating breath sounds.
B. The sternum is also not the correct starting location for breath sound auscultation.
C. The aortic site is unrelated to lung auscultation.
D. The lung apex, located above the clavicle, is the correct location to begin auscultating anterior breath sounds. This systematic approach ensures all areas of the lungs are assessed for normal and abnormal breath sounds.