Given a mean of 50.0 and an SD of 10.0, which of the following would have the smallest estimated SEM?
a. A sample size of 50
b. A sample size of 250
c. A sample size of 500
d. It cannot be determined without knowing the size of the population.
C
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The nurse is evaluating the care received by a client who has a hearing deficit. Which client statement indicates that care has been effective?
A) "I ask others to face me when they talk, as I can hear them better." B) "I hear better when the television volume is raised." C) "I will change the battery in my hearing aid once a month." D) "I might use the hearing aid when I go shopping."
The purpose of the ovum's zona pellucida is to:
a. Make a pathway for more than one sperm to reach the ovum. b. Allow the 46 chromosomes from each gamete to merge. c. Prevent multiple sperm from fertilizing the ovum. d. Stimulate the ovum to begin mitotic cell division.
The nurse is preparing a teaching plan for a patient with type 2 diabetes mellitus regarding proper foot care. Which instructions should the nurse include in this plan? Standard Text: Select all that apply
1. See a podiatrist for nail care. 2. Lubricate dry areas with lotion. 3. Dry moist areas between the toes. 4. Use an emery board to smooth toe nails. 5. Soak feet in hot water and allow to air dry.
The nurse is teaching the patient and family how to perform tracheal suctioning. What does proper technique include?
a. Teaching how to instill normal saline before suctioning b. Suctioning the nasal and oral pharynx before the trachea c. Encouraging daily brushing of the teeth and oral hygiene d. Having the patient take two to three deep breaths after the procedure