Question

To produce capillary vasodilation, electrodes for transcutaneous oxygen should be:

a) Placed close together.

b) Applied with moderate pressure.

c) Positioned over bony prominences.

d) Positioned over adipose tissue.

Answer 1

To produce capillary vasodilation, electrodes for transcutaneous oxygen should be positioned over adipose tissue. This is because adipose tissue is a rich source of blood vessels, and placing the electrodes over this tissue will maximize the amount of blood flow to the area. Additionally, adipose tissue is more forgiving of pressure than other tissues, so there is less risk of damage to the skin when the electrodes are applied. so, the correct answer is d) Positioned over adipose tissue.

Step-by-step explanation:

Capillary vasodilation is the widening of capillaries, which are small blood vessels that carry oxygen and other nutrients to the tissues. When capillaries dilate, more blood can flow through them, which increases the amount of oxygen and nutrients that are delivered to the tissues.

Transcutaneous oxygen monitoring (TCM) is a non-invasive method of measuring the amount of oxygen in the blood. TCM electrodes are placed on the skin, and they measure the amount of oxygen that diffuses through the skin from the capillaries.

Adipose tissue is a type of connective tissue that is composed of fat cells. Fat cells have a rich supply of blood vessels, so they are an ideal location for placing TCM electrodes to measure capillary oxygenation. so, the correct answer is d) Positioned over adipose tissue.

Answer 2

To produce capillary vasodilation, electrodes for transcutaneous oxygen should be Positioned over bony prominences. This ensures optimal oxygen diffusion with minimal interference from adipose tissue, as bony areas have thinner adipose layers, allowing for more accurate measurements and reliable assessment of tissue oxygenation. Thus the correct option is C. Positioned over bony prominences.

Step-by-step explanation:

Transcutaneous oxygen monitoring involves the measurement of oxygen diffusion through the skin to assess tissue oxygenation. Placing electrodes over bony prominences is crucial because these areas have thinner layers of adipose tissue, allowing for better penetration of oxygen. The proximity to bone ensures a more direct measurement of tissue oxygenation, as bone is relatively avascular compared to adipose tissue, minimizing interference with blood flow dynamics.

Electrodes placed over bony prominences facilitate optimal oxygen diffusion without the impedance caused by adipose tissue. When electrodes are positioned over adipose tissue, the thicker layer may impede the efficient transfer of oxygen, leading to inaccurate readings.

This interference is due to the greater distance and increased resistance presented by adipose tissue compared to the direct contact with bone. Therefore, to enhance the accuracy of transcutaneous oxygen measurements and induce capillary vasodilation, precise electrode placement over bony prominences is essential.

In conclusion, selecting the appropriate electrode placement is critical for reliable transcutaneous oxygen monitoring. Opting for bony prominences ensures a more direct and unimpeded measurement of tissue oxygenation, minimizing potential inaccuracies associated with adipose tissue interference. This careful electrode placement is fundamental for healthcare professionals seeking accurate and meaningful data in the assessment of tissue oxygen levels.

Thus the correct option is C. Positioned over bony prominences.