Author Question: What is meant by concentric tension of muscles? a. Increased muscle contraction results in ... (Read 109 times)

renzo156 · **on:** Jul 22, 2018

What is meant by concentric tension of muscles?

a. Increased muscle contraction results in movement.
b. The speed and direction of movement are controlled.
c. Tension causes no shortening or active movement.
d. Tension does not result in isotonic contraction.

Question 2

The nurse is assessing a patient 2 hours after a colonoscopy. Based on the procedure done, what focused assessment will the nurse include?

a. Bowel sounds
b. Presence of flatulence
c. Bowel movements
d. Nausea

missalyssa26 · **Reply #1 on:** Jul 22, 2018

Answer to Question 1

A
In concentric tension, increased muscle contraction causes muscle shortening, resulting in movement. Eccentric tension helps control the speed and direction of movement. Concentric and eccentric muscle actions are necessary for active movement and are referred to as dynamic or isotonic contraction. Isometric contraction (static contraction) causes an increase in muscle tension or muscle work but no shortening or active movement of the muscle.

Answer to Question 2

A
The nurse does want to hear the presence of bowel sounds; absent bowel sounds may indicate a complication from the surgery. Bowel movements and flatulence are not expected in the hours after surgery. The nurse does want to hear the presence of bowel movements. Nausea is not a problem following colonoscopy.