What effect does aging have on the conduction velocity of the nerves? What effect does this have on the ability of the older patient to feel pain?
What will be an ideal response?
Nerve conduction velocity decreases. Pain sensation in the elderly is diminished.
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Which of the following statements best describes the function of proportional assist ventilation on the Covidien PB 840?
a. The percentage of the work done by the patient is adjusted by the ventilator moni-toring the work of breathing. b. The percentage of the work done by the ventilator is automatically reduced as the compliance and resistance is improving. c. The operator sets a percentage of the work of breathing that is done by the ventilator; the remainder of the work of breathing is done by the patient. d. The ventilator adjusts the amount of work done by the ventilator based on continu-ous monitoring of the partial pressure of end-tidal carbon dioxide and the oxygen saturation measured by pulse oximeter.
While mechanically ventilating a patient who has obstructive airway disease, the therapist observes the patient contracting his inspiratory muscles, but notices no ventilator activity. The flow-time scalar indicates that the expiratory flow returns to baseline before the next inspiration begins. What should the therapist do at this time?
A. Add 2 to 5 cm H2O of extrinsic PEEP, and evaluate the patient's response. B. Increase the inspiratory flow, and observe the patient's reaction. C. Increase the delivered tidal volume, and assess how the patient reacts. D. Sedate and paralyze the patient to gain control of the mechanical ventilation.
The _______________ root of spinal nerves contains axons of sensory neurons only.
Fill in the blank(s) with the appropriate word(s).
The signal provided by a CT detector must be converted from a digital format to an analog format prior to being sent to the computer
Indicate whether the statement is true or false