A nursing student develops a positive reaction to the tuberculin skin test. A history reveals possible exposure to patients with tuberculosis. A sputum sample is acid-fast negative. When asked for vaccination records, the student reports that childhood
vaccination records were lost when the family emigrated from a Southeast Asian country. What is the best explanation for the test results?
A) The student has been infected with Mycobacterium tuberculosis.
B) The student has been exposed to Mycobacterium tuberculosis.
C) The student is not infected.
D) The student has been exposed to Mycobacterium tuberculosis or was vaccinated with BCG vaccine.
E) No conclusion is possible with the information provided.
D
Bloom's Taxonomy: Application
Section: Bacterial Diseases of the Lower Respiratory System
Learning Outcome: 22.18
You might also like to view...
Where are complement proteins synthesized, and what do they do?
a. in the bone marrow, generate new platelets and T-cells b. in the kidneys and plasma, destroy intracellular pathogens c. in macrophages and the liver, destroy extracellular pathogens d. in the spleen and duodenum, generate macrocytes
An acid
A. has a value above 7 on the pH scale. B. is a chemical that takes hydrogen ions from a solution. C. has a value of 7 on the pH scale. D. is a chemical that adds hydrogen ions to a solution. E. All of the answer choices are correct.
In situ conservation includes:a
zoos. b. aquaria. c. parks and reserves. d. seed storage banks. e. sperm banks
The left and right hemispheres of the brain are connected through the ________, a large band of axons
Fill in the blank(s) with correct word