What is a speaking valve and how does it make phonation possible?
What will be an ideal response?
A speaking valve is a device that consists of a one-way valve that fits on a traditional or fenestrated tracheostomy tube over a 15-mm connection. The one-way valve allows the patient to breathe in, but exhaled air is blocked and diverted around the deflated cuff or fenestrations. The air moves through the vocal cords making phonation possible.
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An internal control is a procedure that helps ensure all financial matters are handled properly and discourages unethical workers from stealing.
Answer the following statement true (T) or false (F)
Which of the following are examples of how computers are used in diagnostic services?
A. Pharmacy drugs are inventoried using a computer. B. The positron emission tomography (PET) computer produces a 3-D image that shows an organ or bone from all sides. C. Respiratory therapy computers keep critically ill patients in homeostasis. D. Computers in intensive care units monitor patients and warn caregivers about potentially dangerous conditions. E. All of the above
Which of the following is reported with a code from category Z95?
a. presence of xenogenic heart valve b. adjustment of cardiac pacemaker c. coronary angioplasty status without implant d. complications of cardiac devices
When beginning a search in the index for a procedure, which of the following would be a main term?
A) the procedure name, such as cholecystectomy B) the anatomical body part, such as the appendix or liver C) an acronym, eponym, or synonym D) any of the above can be a main term