A concern for a nurse who is observing a client performing isometric exercises is if the client is:
A. Holding his or her breath while exerting
B. Performing the exercises 4 times per day
C. Tightening each muscle group for 8 seconds, then relaxing
D. Repeating each exercise 8 to 10 times for each muscle group
A
A. Clients doing isometric exercises should be taught to exhale while exerting effort. Many persons hold their breath (Valsalva maneuver), which increases intrathoracic pressure, causing a decrease in venous return to heart.
B and D. Client will gradually increase number of exercise repetitions.
C. Hold muscles tightly contracted for 5 to 15 seconds and then relax completely for several seconds.
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