Nursing Elites

1. What causes an older female client's hair to turn gray?

• A. ''A loss of melanin occurs in the normal aging process.''
• B. ''The number of sweat glands and blood vessels decreases in the normal aging process.''
• C. ''The skin on the scalp becomes thin, causing moisture to escape.''
• D. ''It is caused by hereditary factors.''

Correct answer: A

Rationale: The correct answer is 'A loss of melanin occurs in the normal aging process.' Graying hair in older adults is primarily due to a decrease in the number of melanocytes responsible for providing pigment and hair color. This reduction in melanin production leads to gray hair. The other choices are incorrect. While it is true that the skin becomes thinner with aging and the number of sweat glands and blood vessels decreases, these changes are not directly related to graying hair. Additionally, hereditary factors can influence when graying starts, but they do not cause the graying of hair itself.

2. A nurse reviewing a client's record notes that the result of the client's latest Snellen chart vision test was 20/80. The nurse interprets the client's results in which way?

• A. The client is legally blind.
• B. The client has normal vision.
• C. The client can read at a distance of 20 feet what a client with normal vision can read at 80 feet.
• D. The client can read at a distance of 80 feet what a client with normal vision can read at 20 feet.

Correct answer: D

Rationale: When interpreting visual acuity testing results using the Snellen chart, the recorded numeric fraction represents the distance the client is standing from the chart and the distance a normal eye could read that particular line. A reading of 20/80 means that the client can read at 20 feet what a client with normal vision can read at 80 feet. This indicates visual impairment but does not meet the criteria for legal blindness, which is defined as best-corrected vision in the better eye of 20/200 or worse. Normal visual acuity is 20/20. Therefore, the correct interpretation is that the client can read at a distance of 80 feet what a client with normal vision can read at 20 feet. Choice A is incorrect because 20/80 does not meet the criteria for legal blindness. Choice B is incorrect as the client's vision is impaired. Choice C is incorrect because it reverses the interpretation of the fraction.

3. Assisting with data collection, a nurse notes tenderness while lightly palpating a client's right lower quadrant of the abdomen. The nurse determines that this finding is most likely associated with which anatomic structure?

• A. Liver
• B. Spleen
• C. Pancreas
• D. Appendix

Correct answer: D

Rationale: The correct answer is the Appendix. Tenderness in the right lower quadrant of the abdomen is a classic sign of appendicitis, which is inflammation of the appendix. The appendix is located in the right lower quadrant. The other choices are incorrect. The spleen is located on the posterolateral wall of the abdominal cavity under the diaphragm. The pancreas is located behind the stomach. The liver fills most of the right upper quadrant and extends to the left midclavicular line.

4. A nurse calculates a newborn infant's Apgar score 1 minute after birth and determines that the score is 6. What is the most appropriate action for the nurse to take?

• A. Initiate cardiopulmonary resuscitation
• B. Gently stimulate the infant by rubbing his back while administering oxygen
• C. Recheck the score in 5 minutes
• D. Provide no action except to support the infant's spontaneous efforts

Correct answer: B

Rationale: The Apgar score is a method for rapidly evaluating an infant's cardiorespiratory adaptation after birth. The nurse assigns scores in five areas: heart rate, respiratory effort, muscle tone, reflex response, and color, totaling the scores. A score of 8 to 10 requires no action other than supporting the infant's spontaneous efforts and observation. A score of 4 to 7 indicates the need to gently stimulate the infant by rubbing his back while administering oxygen. If the score is 1 to 3, the infant requires resuscitation. Therefore, in this scenario with an Apgar score of 6, the correct action is to gently stimulate the infant by rubbing his back while administering oxygen. Initiating cardiopulmonary resuscitation would be excessive at this point, and rechecking the score in 5 minutes may delay necessary interventions. Providing no action except to support the infant's spontaneous efforts is insufficient for a score of 6, indicating the need for stimulation and oxygen administration.

5. A healthcare professional is using an otoscope to inspect the ears of an adult client. Which action does the professional take before inserting the otoscope?

• A. Pulling the pinna up and back
• B. Pulling the pinna down and forward
• C. Tipping the client's head down and toward the examiner
• D. Tipping the client's head down and away from the examiner

Correct answer: A

Rationale: In an adult client, the healthcare professional should pull the pinna up and back before inserting the otoscope. This action helps straighten the S shape of the ear canal, making it easier to insert the otoscope directly and comfortably. Tipping the client's head down and toward or away from the examiner is not the correct action when using an otoscope in an adult. Pulling the pinna down and forward is typically done when examining an infant or a child younger than 3 years old to straighten their ear canal for better visualization.

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