A patient's vision is recorded as 20/30 when the Snellen eye chart is used. The nurse interprets these results to indicate that:
a. At 30 feet the patient can read the entire chart.
b. The patient can read at 20 feet what a person with normal vision can read at 30 feet.
c. The patient can read the chart from 20 feet in the left eye and 30 feet in the right eye.
d. The patient can read from 30 feet what a person with normal vision can read from 20 feet.
ANS: B
The top number indicates the distance the person is standing from the chart; the denominator gives the distance at which a normal eye can see.
You might also like to view...
The school nurse collaborates with the physical education instructor to increase the amount of physical activity during the school day. What are major benefits of physical activity? (Select all that apply.)
a. Reduced death rates as adults b. Reduced risk of cardiovascular disease c. Reduced risk of hypertension d. Reduced risk of diabetes e. Reduced self-esteem
A patient is started on immunosuppressant drugs after kidney transplantation and will be taking azathioprine [Imuran] as part of the drug regimen
The patient asks the nurse why it is necessary to have a specimen for a complete blood count drawn at the beginning of therapy and then pe-riodically thereafter. The nurse explains that azathioprine can alter blood cells and tells the patient to report: a. alopecia. b. easy bruising. c. fatigue. d. gastrointestinal (GI) upset.
Nonadherence is especially common in drugs that treat asymptomatic conditions, such as hypertension. One way to reduce the likelihood of nonadherence to these drugs is to prescribe a drug that:
1. Has a short half-life so that missing one dose has limited effect 2. Requires several dosage titrations so that missed doses can be replaced with lower doses to keep costs down 3. Has a tolerability profile with fewer of the adverse effects that are considered "irritating," such as nausea and dizziness 4. Must be taken no more than twice a day
The postpartum nurse is instructing a new mother that her infant will pass meconium for
A) 1 day B) 2 days C) 3 days D) 4 days