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ATI Community Health Proctored Exam 2019 Quizlet
1. Sputum examination is the major screening tool for pulmonary tuberculosis. Clients may sometimes receive false negative results in this exam. This means that the test is not perfect in terms of which characteristic of a diagnostic examination?
- A. Effectiveness
- B. Efficacy
- C. Specificity
- D. Sensitivity
Correct answer: D
Rationale: Sensitivity is the ability of a diagnostic test to correctly identify individuals with the disease. A test with high sensitivity will rarely give false negative results, as it will detect almost all positive cases. In the context of the given scenario, false negative results indicate that the test is lacking in sensitivity to pick up all cases of pulmonary tuberculosis, leading to some cases being missed.
2. Which is a characteristic of person-to-person propagated epidemics?
- A. There are more cases of the disease than expected
- B. The disease must necessarily be transmitted through a vector
- C. The spread of the disease can be attributed to a common vehicle
- D. There is a gradual build-up of cases before the epidemic becomes easily noticeable
Correct answer: D
Rationale: In person-to-person propagated epidemics, there is typically a gradual build-up of cases before the epidemic becomes easily noticeable. This slow onset allows for the disease to spread from one individual to another, leading to a progressive increase in cases over time.
3. Which of the following practices is essential for preventing the spread of healthcare-associated infections?
- A. Frequent handwashing
- B. Sharing medical equipment
- C. Reducing patient turnover
- D. Increasing hospital bed capacity
Correct answer: A
Rationale: Frequent handwashing is a crucial practice for preventing the spread of healthcare-associated infections. Washing hands frequently helps remove pathogens and reduces the risk of transmitting infections between patients, healthcare providers, and other individuals in healthcare settings.
4. What is the recommended duration of exclusive breastfeeding?
- A. 3 months
- B. 6 months
- C. 9 months
- D. 12 months
Correct answer: B
Rationale: The World Health Organization recommends exclusive breastfeeding for the first 6 months of a child's life. During this time, breast milk provides all the necessary nutrients for the baby's growth and development, offering protection against infections and supporting optimal health outcomes. After 6 months, complementary foods can be introduced while continuing breastfeeding up to 2 years of age or beyond.
5. Where is the correct injection site for administering the DPT vaccine to an infant?
- A. Deltoid muscle
- B. Gluteal muscle
- C. Vastus lateralis muscle
- D. Forearm
Correct answer: C
Rationale: The vastus lateralis muscle is the preferred site for intramuscular injections in infants due to its larger muscle mass and fewer major nerves and blood vessels, reducing the risk of injury or adverse effects.
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