A Bioelectrical Impedance Analysis (BIA) is being performed on a client. Which of the following is associated with this test? Standard Text: Select all that apply
1. Instruct the client to be NPO for 6 to 8 hours prior to the assessment.
2. Instruct the client to discontinue all vitamin and mineral supplementation for 24 hours prior to the assessment.
3. Instruct the client to lie in a supine position during the assessment.
4. Place electrodes on the dorsal surface of the client's foot.
5. Place electrodes on the dorsal surface of the client's hand.
3,4,5
Rationale 1: Instruct the client to be NPO for 6 to 8 hours prior to the assessment. Altered hydration and altered skin temperature will cause measurement error by altering electrical current flow. Clients should be well hydrated when employing BIA technology, or dehydration will slow conductivity and give a falsely high body fat measurement.
Rationale 2: Instruct the client to discontinue all vitamin and mineral supplementation for 24 hours prior to the assessment. Calculations are based on the knowledge that muscle and fluids have a higher electrolyte and water content than does fat and thus conduct electrical current differently. Discontinuation of vitamin and mineral supplementation does not impact test findings.
Rationale 3: Instruct the client to lie in a supine position during the assessment. During the assessment the client will be instructed to lie in a supine position.
Rationale 4: Place electrodes on the dorsal surface of the client's foot. Electrodes are placed on the dorsal surface of the client's foot for the test.
Rationale 5: Place electrodes on the dorsal surface of the client's hand. Electrodes are placed on the dorsal surface of the client's hand for the test.
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