Which of the following high-frequency ventilators are pneumatically powered and controlled?

Which of the following is a description of a trigger point?

a. A tense band of varying length and width b. Fairly circumscribed location c. Pronounced sensitivity d. All describe a trigger point

Which of the following BEST defines a "positive bone scan"?

A. The oxygen and carbon dioxide content of the blood as measured in diagnostic laboratory tests B. A percutaneous surgical procedure that utilizes fluoroscopic radiologic guidance and is used to repair collapsed or fractured vertebrae C. A specific kind of diagnostic test that utilizes X-rays to measure the calcium content in the bone, often in the lumbar region of the back D. Diagnostic test requiring a small amount of blood to determine the components within the patient's blood