ATI RN
Emergency Preparedness and Disaster Management Questions
Question 1 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 2 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 3 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.
Question 4 of 5
Characteristic signs or symptoms of kwashiorkor include all the following EXCEPT
Correct Answer: B
Rationale: Kwashiorkor (protein deficiency) causes edema and hypoalbuminemia, not fat loss (seen in marasmus). Diarrhea and skin lesions occur.
Question 5 of 5
Match each set of symptoms and signs with the dietary deficiency: Petechiae, sore gums, hematuria, and bone or joint pain
Correct Answer: C
Rationale: Scurvy (vitamin C deficiency) causes petechiae, gum issues, and bone pain.