A nurse is assessing the visual acuity of a client who wears glasses using a Snellen chart. Which of the following actions should the nurse take?
Position the client 3 meters (10 feet) away from the chart
Document the largest line the client can read on the chart
Instruct the client to begin the assessment with both eyes open
Begin by testing the client while they are wearing glasses
The Correct Answer is D
To test visual acuity using a Snellen chart, the nurse should have the patient wear glasses or contact lenses if they normally wear them . The patient should stand 20 feet from the chart . The nurse should tell the patient to first cover the right eye, then left eye, and lastly read the chart with both eyes .
The other options are not correct because:
a). The client should be positioned 20 feet away from the chart, not 3 meters (10 feet).
b) The nurse should document the smallest line the client can read accurately on the chart, not the largest line.
c) The nurse should instruct the client to begin the assessment by covering one eye and reading aloud the letters on the chart, beginning at the top and moving toward the bottom
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Related Questions
Correct Answer is C
Explanation
The nurse should apply a heat pack 5 to 10 minutes prior to the procedure when planning to obtain blood from a newborn via a heel stick. This helps to increase blood flow to the area and makes it easier to obtain the specimen.
a) Puncturing the heel to a depth of 4 mm is too deep and can cause injury to the newborn. The recommended depth for a heel stick is 2.4 mm or less.
b) Withholding feeding prior to collecting the specimen is not necessary.
d) Elevating the newborn's foot for 15 minutes following the procedure is not necessary.
Correct Answer is D
Explanation
As individuals age, there is a natural decline in kidney function. This can result in a reduced ability to filter and excrete medications and their metabolites from the body. The decreased kidney function can lead to a longer half-life of medications, increased drug accumulation, and an increased risk of adverse drug reactions. It is important for the nurse to adjust medication dosages and frequencies based on the individual's renal function to prevent drug toxicity.
Increased liver function: Aging is associated with a gradual decline in liver function. While there may be some individual variations, in general, liver function decreases rather than increases with age. However, changes in liver function can affect the metabolism and elimination of medications. Some medications may require dosage adjustments based on liver function, but it is not a common physiological change in older adults.
Increased metabolism: Aging is generally associated with a decrease in metabolism rather than an increase. The metabolic rate tends to slow down with age, which can affect the pharmacokinetics of medications. Slower metabolism can result in medications taking longer to be metabolized and cleared from the body, potentially leading to prolonged drug effects.
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