A nurse explains to a patient undergoing diagnostic testing which brain imaging technique measures brain structure?
a. Computed tomography (CT)
b. Positron emission tomography (PET)
c. Brain electrical activity mapping (BEAM)
d. Single-photon emission computed tomography (SPECT)
A
CT can image brain structures through a series of radiographs that are computer constructed into "slices" of the brain that can be stacked by the computer, giving the image a three-dimensional appearance. PET and SPECT image brain activity and function through the tracking of radioactive substances as they travel through the brain. BEAM images brain activity and function through recordings of the brain's electrical activity.
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What is the most important reason for the nurse to begin a program for activities of daily living (ADL) as soon as the patient is admitted to a rehabilitation facility?
A) The ability to perform ADLs may be the key to dependence. B) The ability to perform ADLs is essential to living in a group home. C) The ability to perform ADLs may be the key to reentry into the community. D) The ability to perform ADLs is necessary to function in an assisted-living situation.
The following criterion is considered a positive finding when determining whether a patient with asthma can be safely monitored and treated at home:
A. Age over 40 B. Fever greater than 101 C. Tachypnea greater than 30 breaths/minute D. Productive cough
A client with erectile dysfunction who is prescribed sildenafil asks the nurse, "When should I take the medication?" Which response by the nurse would be most appropriate?
A) "You should take it every morning when you first get up." B) "Take it about ½ to 2 hours before you have sexual activity." C) "You need to take it about 5 minutes before you have intercourse." D) "Take it at night before bedtime."
A patient with elevated electrolyte levels is likely to receive ________ solutions.
A. isotonic B. hypertonic C. hypotonic D. therapeutic