A nurse in a provider's office is reinforcing teaching about disease prevention with an older adult client. Which of the following immunizations should the nurse recommend to the client?

is not the correct answer because the tricuspid area is not the location where a nurse should auscultate for a murmur related to mitral valve regurgitation. The tricuspid area is located at the fifth intercostal space at the lower left sternal border, and is the site where blood flows from the right atrium to the right ventricle during systole.<\/p>"},"B":{"choice":"-","reason":"

The correct answer is choice B, the mitral area. When auscultating for a murmur in a client with mitral valve regurgitation, the nurse should place the stethoscope at the mitral area, which is the fifth intercostal space at the left midclavicular line. This is because the mitral valve is located at this spot and is the site where blood flows from the left atrium to the left ventricle during systole.<\/p>"},"C":{"choice":"-","reason":"

is not the correct answer because the aortic area is not the location where a nurse should auscultate for a murmur related to mitral valve regurgitation. The aortic area is found at the second intercostal space at the right sternal border, and is the site where blood flows from the left ventricle to the aorta during systole.
\r\nChoiceD4 is not the correct answer because the pulmonic area is not the location where a nurse should auscultate for a murmur related to mitral valve regurgitation. The pulmonic area is located at the second intercostal space at the
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\r\nleft sternal border, and is the site where blood flows from the right ventricle to the pulmonary artery during systole.<\/p>"},"D":{"choice":"-","reason":"

The correct answer is choice B, the mitral area. When auscultating for a murmur in a client with mitral valve regurgitation, the nurse should place the stethoscope at the mitral area, which is the fifth intercostal space at the left midclavicular line. This is because the mitral valve is located at this spot and is the site where blood flows from the left atrium to the left ventricle during systole.<\/p>"}}

Palpable area of induration, greater than 10 mm (0.4 in) in diameter. This indicates a positive tuberculin skin test (TST) reaction for a person with no known risk factors for TB infection. A positive TST reaction means that the person has been infected with Mycobacterium tuberculosis, the bacterium that causes TB disease, and needs further testing to confirm the diagnosis and rule out active TB disease.

The other choices are not correct because:

- Choice A. Nonpalpable area of redness, less than 5 mm (0.2 in) in diameter. This indicates a negative TST reaction for any person, regardless of their risk factors for TB infection. A negative TST reaction means that the person has not been infected with Mycobacterium tuberculosis or has a very low level of immune response to the bacterium.

- Choice B. Area of ecchymosis, greater than 12 mm (0.5 in) in diameter. This indicates a bruise or bleeding under the skin, not a TST reaction. Ecchymosis is not caused by the injection of tuberculin purified protein derivative (PPD) into the skin, but by trauma or injury to the blood vessels.

- Choice C. Tenderness at the injection site. This indicates a mild local reaction to the injection of tuberculin PPD into the skin, not a TST reaction. Tenderness is not measured in millimeters of induration (firm swelling), which is the standard way of reading TST results.