Which of the following best describes RAID technology?
1. The computer shuts down when a single disk fails.
2. Community clinics use a primary data storage drive.
3. RAID costs more than using one large disk drive.
4. Duplicate disks mirror copies of data.
4
Rationale: RAID is a secondary storage technology that uses duplicate disks to mirror copies of data. Using RAID may be less costly than using one large disk drive. In the event that an individual disk fails, the remaining RAID would permit the computer to continue working uninterrupted.
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Family dynamics are thought to be a major influence in the development of anorexia nervosa. Which statement regarding a client's home environment should a nurse associate with the development of anorexia nervosa?
1. The home environment maintains loose personal boundaries. 2. The home environment places an overemphasis on food. 3. The home environment is overprotective and demands perfection. 4. The home environment condones corporal punishment.
The nurse is caring for a client who is scheduled for a percutaneous liver biopsy. Which diagnostic test is obtained prior?
A) Complete blood count (CBC) B) Prothrombin time (PT) C) Blood chemistry D) Erythrocyte sedimentation rate (ESR)
An adolescent admits to using marijuana on a daily basis. What should the nurse explain to the patient to help improve performance in school?
A) The effect of marijuana fades fastest if eating occurs after use. B) Marijuana causes memory gaps that interfere with learning. C) Marijuana leads to muscle laxness, so it should not be used close to gym class. D) Marijuana increases blood pressure; running should not be done after smoking it.
The heartbeat normally originates in which part of the heart?
a. Purkinje fibers c. SA node b. AV node d. bundle of His