A nurse is assessing for cyanosis in a client who has dark skin. Which of the following sites should the nurse examine to identify cyanosis in this client?
Dorsal surface of the foot
Dorsal surface of the hand
Pinnae of the ears
Conjunctivae
The Correct Answer is D
A) The dorsal surface of the foot is not the most reliable site to assess for cyanosis in individuals with dark skin because the skin pigmentation can mask the bluish tint that indicates reduced oxygenation.
B) Similarly, the dorsal surface of the hand may not clearly show cyanosis due to the thickness and pigmentation of the skin, which can obscure the color change.
C) The pinnae of the ears may also not be the best indicator of cyanosis in dark-skinned individuals because peripheral areas like the ears can be affected by environmental temperatures, leading to misleading color changes.
D) The conjunctivae, however, are a mucous membrane where the skin pigmentation does not affect visibility. Therefore, it is an appropriate site for assessing cyanosis as it allows for the observation of subtle changes in color that indicate hypoxia. This is why the conjunctivae are the correct site to examine for cyanosis in a client with dark skin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Irrigating the wound with an antiseptic prior to obtaining the specimen can introduce substances that may interfere with the accuracy of the culture results. Sterile saline is the preferred solution for wound irrigation.
B. Intact skin at the wound edges should not be included in the culture. The specimen should be obtained directly from the wound bed or drainage.
C. Swabbing an area of skin away from the wound to identify the usual flora is not appropriate for obtaining a wound drainage specimen. The culture should be taken directly from the wound site.
D. Before obtaining a wound-drainage specimen for culture, it is important to cleanse the wound with a sterile solution, such as 0.9% sodium chloride saline irrigation. This helps remove debris and contaminants from the wound site, providing a more accurate specimen for culture.
Correct Answer is A
Explanation
A. Cranial nerve III, also known as the oculomotor nerve, controls the muscles that move the eye and regulates the size of the pupil. Assessing the pupillary response to light helps evaluate the function of this nerve.
B. Eliciting the gag reflex is associated with cranial nerves IX (glossopharyngeal) and X (vagus), not cranial nerve III.
C. Testing visual acuity is primarily associated with cranial nerve II (optic nerve), not cranial nerve III.
D. Observing facial symmetry is important for assessing cranial nerve VII (facial nerve), not cranial nerve III.
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