A student nurse is working with their preceptor on a medical-surgical unit. While reviewing concepts related to acid-base balance, what should the preceptor state is a compensatory mechanism for metabolic alkalosis?
Kidney conservation of bicarbonate and excretion of hydrogen ions
Deep, rapid respirations to increase CO2 excretion
Respiratory hypoventilation to retain CO2 and kidney excretion of bicarbonate
Shifting of bicarbonate into cells in exchange for chloride
The Correct Answer is C
A. Kidney conservation of bicarbonate and excretion of hydrogen ions: This option is not correct for metabolic alkalosis. In metabolic alkalosis, the kidneys would typically excrete bicarbonate rather than conserve it.
B. Deep, rapid respirations to increase CO2 excretion: This is incorrect because deep, rapid respirations are more associated with compensating for metabolic acidosis by increasing CO2 excretion. In metabolic alkalosis, the body attempts to retain CO2.
C. Respiratory hypoventilation to retain CO2 and kidney excretion of bicarbonate: This is the correct choice. In metabolic alkalosis, the body compensates by reducing respiration rate (hypoventilation) to retain CO2, which helps to counteract the elevated pH. Additionally, the kidneys may excrete bicarbonate to balance the pH.
D. Shifting of bicarbonate into cells in exchange for chloride: This mechanism is more related to respiratory alkalosis rather than metabolic alkalosis. In metabolic alkalosis, the primary compensatory mechanisms involve changes in respiratory rate and renal bicarbonate excretion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Teach the client a relaxation technique to use until the next dose is due: While relaxation techniques can be helpful in managing pain, they are not sufficient for severe pain rated 9/10. The client requires more immediate pharmacological intervention.
B. Obtain an order for an immediate-release opioid for breakthrough pain: This is the most appropriate action. Immediate-release opioids are specifically used to manage breakthrough pain in clients on sustained-release opioid therapy. It addresses the client's severe pain effectively and promptly.
C. Explain to the client that the medication being administered lasts for 12 hours: Simply explaining the duration of the medication does not address the client's current severe pain. Effective pain management requires action, not just education.
D. Assess the client's vital signs and administer the next dose of opioids early: Administering the next dose early can lead to inappropriate dosing schedules and potential overdose. It is important to follow the prescribed dosing regimen and manage breakthrough pain appropriately.
Correct Answer is D
Explanation
A. Deep breathing and coughing exercises daily: These are important for preventing respiratory complications but do not specifically address the prevention of thrombosis.
B. Removal of compression stockings at night: Compression stockings should generally be worn continuously to prevent venous stasis and thrombosis.
C. Floating the heels while lying in bed: This helps prevent pressure ulcers but is not a primary intervention for preventing thrombosis.
D. Leg exercises ten times per hour while awake: This is the correct choice. Regular leg exercises improve circulation and help prevent venous stasis, thereby reducing the risk of thrombosis.
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