A Wound-Care Specialist Is Interested in Testing a Handheld Ultrasound

question 19

Multiple Choice

A wound-care specialist is interested in testing a handheld ultrasound probe to assess true depth of damage under an eschar-covered pressure ulcer.In reviewing product materials,which reported precision confidence interval (CI) for correct depth assessment would make the nurse interested in purchase?

• A) CI of 2-100 mm
• B) CI of 15-75 mm
• C) CI of 25-75 mm
• D) CI of 2-5 mm

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Definitions:

Hyperpolarization

Increase in the charge difference across the plasma membrane; causes the charge difference to move away from 0 mV.

Hypopolarization

Change in the electric charge difference across the plasma membrane that causes the charge difference to be smaller or move closer to 0 mV.

Extracellular

Located or occurring outside a cell or cells.

Aldosterone

A hormone produced by the adrenal glands that regulates sodium and potassium balance in the body, influencing blood pressure and fluid balance.