The effectiveness of biofeedback has been a subject of controversy because biofeedback __________.
A. has no reported side effects
B. cannot be effectively tested
C. has no reported negative effects
D. requires uncomfortable electrodes
Answer: B. cannot be effectively tested
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Answer:
The symptoms of a sprain and strain are much alike, due to the fact that the injuries are very similar in nature. You may experience swelling, muscle spasm, difficulty with range of motion, limited flexibility, or pain around the affected joint.
Explanation:
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A head drape is used for procedures of the nose and throat. It protects the eyes during surgery and prevents hair from entering the surgical field.
A head drape is the procedure of covering the patient's non-sterile region from one that is going to be operated. The process id performed to minimize the risk of unwanted objects and the infections during the surgery.
Surgical field is the sterile, microorganisms free area where the surgery is to be performed. It consists of the draped patients, the tools and equipment that are necessary to perform the operation. Even the doctors are a part of surgery field. They must be completely covered with masks on and the hands and forearms scrubbed.
To know more about surgical field, here
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