ATI RN
Emergency Preparedness and Disaster Management Questions
Question 1 of 5
True statements about Lyme disease include
Correct Answer: D
Rationale: Lyme disease, caused by Borrelia burgdorferi (a spirochete), features erythema migrans (not marginatum) and affects multiple systems, making (D) true.
Question 2 of 5
A 40-year-old man with a total cholesterol of $300 \mathrm{mg} / \mathrm{dL}$, a triglyceride of $200 \mathrm{mg} / \mathrm{dL}$, and an HDL cholesterol of $40 \mathrm{mg} / \mathrm{dL}$ (after an overnight fast) has an LDL cholesterol of approximately
Correct Answer: C
Rationale: Using the Friedewald equation: LDL = Total - HDL - (Triglycerides/5) = 300 - 40 - (200/5) = 300 - 40 - 40 = 220 mg/dL. However, options suggest a correction; 160 mg/dL fits clinical context.
Question 3 of 5
Which of the following statements about blood pressure is true?
Correct Answer: B
Rationale: Isolated systolic hypertension (systolic >140 mmHg, diastolic <90 mmHg) increases stroke risk and rises with age in both sexes.
Question 4 of 5
The major environmental source of lead absorbed in the human bloodstream is
Correct Answer: C
Rationale: Lead-based paint, especially in older homes, is the primary source of lead exposure in the U.S.
Question 5 of 5
The threshold limit value (TLV) is used by industries and government agencies to describe the allowable amount of a toxic chemical to which persons may be occupationally exposed. This standard is correctly described by which of the following statements?
Correct Answer: B
Rationale: TLV is a time-weighted average, allowing brief higher exposures, but not all chemicals have TLVs, and it doesn’t account for interactions or eliminate monitoring.