The nurse is teaching a client about how to use crutches. Which action performed by the client demonstrates to the nurse a correct understanding of how to use the crutches?

The correct answer is A. Start collecting the specimen with the next void.

Choice A reason: The 4-hour urine collection for creatinine clearance should start with an empty bladder. The first urine of the day is discarded and the time is noted. All subsequent urine for the next 4 hours, including the first urine the following day, should be collected. If the first sample was put in the urinal hours ago and was not collected, the nurse should start collecting the specimen with the next void.

Choice B reason: Beginning the collection the next day would delay the test and may not be necessary. The test should ideally start after the first urine of the day is discarded.

Choice C reason: Observing the sample for sediment is not typically part of the procedure for a 4-hour urine collection for creatinine clearance. The focus is on collecting all urine for a specified period, not on the physical characteristics of the sample.

Choice D reason: Emptying the sample into the 4-hour container would be incorrect if the sample was the first urine of the day, which should be discarded. The collection should start with the next void.

Choice A reason: This is not the most important assessment because abdominal girth is not a reliable indicator of fecal impaction. Abdominal girth can vary depending on the client's body type, fluid status, and other factors.

Choice B reason: This is also not the most important assessment because breath sounds are not directly related to fecal impaction. Breath sounds can be affected by respiratory conditions, smoking, allergies, and other factors.

Choice C reason: This is another incorrect choice because bowel sounds are not the most important assessment either. Bowel sounds can be diminished or absent in clients with fecal impaction, but they can also be altered by other gastrointestinal disorders, medications, and dietary factors.

Choice D reason: This is the correct choice because vital signs are the most important assessment prior to initiating digital removal of a fecal impaction. Vital signs can indicate the client's hemodynamic status, pain level, and risk of complications such as vagal stimulation, perforation, or infection. The nurse should monitor the client's blood pressure, pulse, respirations, and temperature before, during, and after the procedure.