Which Set of Instructions Is Most Appropriate When Preparing the Patient

question 23

Multiple Choice

Which set of instructions is most appropriate when preparing the patient for collection of a 24-hour creatinine clearance for a prelithium workup?

• A) "Collect all urine when you wake up and for 12 hours thereafter, and then discard all collected urine, noting the time. Begin again to collect all urine, and refrigerate it for the next 12 hours after your blood is drawn."
• B) "Discard your first morning urine on awakening, and then begin to time and collect your urine. Keep it refrigerated in a clean 3-L plastic container. Your blood may be drawn at any time during the collection."
• C) "Sign this consent form; then collect your urine for the next 24 hours after discarding the first urine of the morning and then refrigerate the clean 3-L container between voidings."
• D) "Sign this consent form, and then begin to collect your urine in a clean 3-L plastic container for 24 hours. You may refrigerate the urine collection if you wish."

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Definitions:

Superior Phrenic Artery

Blood vessels that supply blood to the superior aspect of the diaphragm, originating from the thoracic aorta or other nearby arteries.

Diaphragm

A dome-shaped muscle at the base of the lungs that plays a crucial role in breathing by contracting and relaxing to change thoracic volume.

Internal Jugular Vein

The internal jugular vein is a major vein in the neck that returns deoxygenated blood from the head to the heart.

Cranial Vault

Eight skull bones that surround and protect the brain; braincase.