Power is the probability that a study will reject the null hypothesis. difference between the null and alternative hypotheses. level of significance, and the null vs. alternative difference. a numeric example of power and sample size estimation for the one-sample case.
During the procedure the patient is unconscious and unaware of the need to urinate. After the procedure, however, it may not be safe for the patient to walk. They may be too sick to take care of their own bathroom needs or their surgeon may feel that a catheter is best for their particular recovery.
Concerns About Your Modesty. If you are required to have an urinary catheter inserted and you are concerned about your modesty, you should take the following steps: 1.) Request that a female nurse or doctor insert your catheter and that no male medical personnel be present. 2.) Request that your catheter be inserted before they give you IV or medicine so you can make sure that your wishes are honored.