Skin color that lacks the red-pink tones from decreased hemoglobin in blood is best described as:
Pallor.
Cyanosis.
Jaundice.
Erythema.
The Correct Answer is A
Choice A rationale
Pallor refers to the pale appearance of the skin due to decreased blood flow or decreased hemoglobin levels. It is often seen in conditions such as anemia, where there is a reduced number of red blood cells or hemoglobin, leading to a lack of the red-pink tones normally present in healthy skin.
Choice B rationale
Cyanosis refers to a bluish discoloration of the skin and mucous membranes due to inadequate oxygenation of the blood. It is often seen in respiratory or cardiovascular conditions where there is a decrease in oxygen levels. Cyanosis does not describe the absence of red-pink tones from decreased hemoglobin.
Choice C rationale
Jaundice refers to a yellow discoloration of the skin and eyes due to elevated levels of bilirubin in the blood. It is often seen in liver conditions or hemolysis. Jaundice is not related to decreased hemoglobin levels or the absence of red-pink tones in the skin.
Choice D rationale
Erythema refers to redness of the skin caused by increased blood flow to the capillaries in the dermis. It is often associated with inflammation, infection, or skin irritation. Erythema indicates increased blood flow, not decreased hemoglobin levels.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Redness in the sclera may indicate inflammation or infection but is not indicative of cataracts, which involve the lens of the eye.
Choice B rationale
Pupil constriction is not directly related to cataracts. Cataracts affect the lens clarity rather than pupil response.
Choice C rationale
Cloudiness in the lens is a hallmark sign of cataracts, which occur due to the lens becoming opaque, thereby obstructing light passage and impairing vision.
Choice D rationale
Blurred vision can result from various eye conditions, not specifically cataracts, which are characterized by lens cloudiness.
Correct Answer is A
Explanation
Choice A rationale
The Angle of Louis, also known as the sternal angle, is located at the level of the 2nd intercostal space. It is a significant landmark in clinical examinations because it is used to locate important areas of the chest, such as the aortic and pulmonic areas, for auscultation.
Choice B rationale
The 3rd intercostal space is not the correct location for the Angle of Louis. The sternal angle is found at the level of the 2nd intercostal space, not the 3rd. Therefore, this option is incorrect.
Choice C rationale
The 2nd rib attaches at the level of the Angle of Louis. The sternal angle is an anatomical landmark where the manubrium and the body of the sternum meet, and it corresponds with the attachment of the 2nd rib.
Choice D rationale
The 4th intercostal space is not the correct location for the Angle of Louis. The sternal angle is located at the 2nd intercostal space, not the 4th. Therefore, this option is incorrect. .
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