List six common advantages of case control studies.
What will be an ideal response?
1. Best design for studying rare diseases.
2. Can be performed in short period of time.
3. Short performance time is generally less costly.
4. Can be performed with fewer subjects than a cohort study.
5. May have easy access to historical data through existing records.
6. Allows the assessment of multiple independent variables (exposures).
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The Department of Labor's strategy developed in 2002 focuses on reducing:
a. fatalities b. musculoskeletal disorders c. accidents d. diseases
The therapist is delivering assist-control ventilation providing a constant VT to a patient experiencing ineffective triggering. The therapist also notes that expiratory flow fails to return to baseline before the initiation of the next mandatory breath. What should the therapist do at this time to correct this problem?
A. Increase the inspiratory flow. B. Institute an inspiratory pause. C. Conduct an expiratory pause maneuver. D. Shorten the expiratory time.