The nurse is conducting a free screening for tuberculosis in a large neighborhood clinic. The nurse expects a large showing of clients to take advantage of this free offer
Which of the following tests would be the most practical for testing a large group of people? A) Tine test
B) Purified protein derivative TB test
C) Mantoux TB test
D) Sputum culture
A
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The tine test is often used in mass screening. A sterile stainless steel disk with four tines (sharp prongs) is impregnated with PPD and the tines are pressed into the person's skin. The disks are packaged individually and are disposable; thus, they offer a practical advantage when testing a large group of people. The purified protein derivative (PPD) tuberculin test, also known as the Mantoux tuberculin skin test, indicates whether a person has ever been exposed to the tubercle bacillus; however, this test is not as convenient for larger groups as is the tine test. If a person has a positive reaction to the testing, a CXR and a sputum culture are done to determine if the lungs are affected.
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