A nurse is performing a skin assessment on a client who has dark skin.
Which of the following locations on the client’s body should the nurse observe to assess for cyanosis?
Area of trauma.
Sacrum.
Shoulders.
Palms of the hands.
The Correct Answer is D
Cyanosis is a bluish discoloration of the skin and mucous membranes due to inadequate oxygenation of the blood. It is more difficult to detect in people who have dark skin, so the nurse should look for cyanosis in areas where the skin is thinner and the blood supply is richer, such as the palms of the hands, the lips, the gums, and around the eyes.
These areas are less affected by melanin, the pigment that gives skin its color.
Choice A is wrong because an area of trauma may have bruising or inflammation that can mask cyanosis.
Choice B is wrong because the sacrum is not a good site to assess for cyanosis in any skin tone, as it is prone to pressure ulcers and poor circulation.
Choice C is wrong because the shoulders are not a mucous membrane and may have more melanin than other areas of the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B. Apply direct pressure to the puncture site.
Choice A rationale:
Applying intermittent pressure 2.5 cm (1 inch) below the percutaneous skin site is not the best approach. This method may not effectively control the bleeding and could potentially dislodge the introducer sheath.
Choice B rationale:
Applying direct pressure to the puncture site is the most effective way to control bleeding. Direct pressure helps to promote clot formation and reduce blood flow to the area, which is crucial in managing postoperative bleeding.
Choice C rationale:
Elevating the affected extremity above the level of the heart is not appropriate in this situation. While elevation can reduce swelling, it does not address the immediate need to control active bleeding.
Choice D rationale:
Leaving the dressing undisturbed and notifying the physician immediately is not advisable. Immediate action to control the bleeding is necessary before notifying the physician. Delaying intervention could lead to significant blood loss.
Correct Answer is D
Explanation
Answer:D. Troponin T test
Rationale:
A. Creatine kinase (CK) test: While creatine kinase isoenzymes, including CK-MB, can be elevated following myocardial infarction (MI), they are not specific to cardiac muscle injury. CK is found in various tissues throughout the body, so elevated levels can also indicate damage to skeletal muscle or brain tissue, among other sources.
B. Creatine kinase-myocardial band (CK-MB) test: CK-MB is a cardiac-specific isoform of creatine kinase, and elevated levels can indicate myocardial injury, particularly in the context of an acute MI. However, troponin T is a more sensitive and specific marker for myocardial injury.
C. Brain natriuretic peptide (BNP) test: Brain natriuretic peptide is primarily used in the diagnosis and management of heart failure. While elevated BNP levels can indicate heart muscle strain or stress, they are not specific markers for acute myocardial infarction or early injury to the cardiac muscle.
D. Troponin T test: This is the correct answer. Troponin T is a highly specific marker for cardiac muscle injury. Elevated troponin levels can be detected within hours of myocardial infarction and persist for several days, making it an essential tool in the diagnosis of acute coronary syndromes, including myocardial infarction. Troponin T is considered one of the gold standard biomarkers for detecting early injury to the cardiac muscle.
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