Gestational Ultrasound. In preparing the client for the procedure, the nurse should explain that the primary reason for conducting the ultrasound is to obtain which information?

A. Functional capacity: While important for older adults, it's not the most pressing concern during this routine follow-up exam.

B. Distinguishing symptoms: This is an ongoing process, but not the most critical element for this visit.

C. Obtain a medication history including prescription and non-prescription drugs. Cataract surgery often involves medication changes or new medications to prevent infection or manage other post-operative needs. An updated medication history helps identify potential interactions or side effects.

D. Advance directives: While important for all adults, it might not be the most urgent topic for this specific follow-up exam focused on managing existing conditions and potential post-surgical medications.

A. Adduction, abduction, and rotation. These movements are more relevant to the hip joint. While rotation can apply to the knee, adduction and abduction do not. These are not the primary movements for assessing knee range of motion.

B. Extension, flexion, and hyperextension. These are the primary movements used to assess the range of motion in the knee joint. Extension and flexion measure the ability of the knee to straighten and bend, respectively. Hyperextension assesses the extent to which the knee can move beyond its normal straight position.

C. Internal and external rotation. While the knee does have some rotational capacity, these movements are limited and not typically used as primary measures of knee range of motion. They are more applicable to hip joint assessments.

D. Pronation and supination. These terms refer to movements of the forearm and wrist, not the knee. They describe the rotational movement of the forearm where the palm turns up (supination) or down (pronation).