Final answer:
Kussmaul respirations in a patient with CKD can be caused by respiratory compensation for metabolic acidosis.
Step-by-step explanation:
Kussmaul respirations are deep, rapid, and labored breathing patterns often seen in patients with metabolic acidosis, as a compensatory response by the body to get rid of excess acid. In the case of a patient with CKD, the nurse would know that a possible cause of Kussmaul respirations is respiratory compensation for metabolic acidosis. This occurs because in CKD, the kidneys are unable to effectively remove acid from the body, causing an accumulation of acid. The body compensates by increasing the rate and depth of breathing to blow off carbon dioxide (which combines with water in the blood to form carbonic acid) and eliminate excess acid.