Nokea
Which of the following is a major risk factor for cardiovascular diseases?
- A. Low cholesterol levels
- B. Physical inactivity
- C. Low blood pressure
- D. Adequate sleep
Correct Answer: B
Rationale: The correct answer is B: Physical inactivity. Physical inactivity is a major risk factor for cardiovascular diseases because regular exercise helps maintain a healthy heart and blood vessels. It reduces the risk of developing conditions like high blood pressure, high cholesterol, and obesity, which are all linked to cardiovascular diseases. In contrast, choices A, C, and D are not major risk factors for cardiovascular diseases. Low cholesterol levels (A) are usually considered beneficial for heart health, low blood pressure (C) is generally a sign of good cardiovascular health, and while adequate sleep (D) is important for overall well-being, it is not directly linked to cardiovascular diseases.
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Which nutrient is most critical for preventing neural tube defects during pregnancy?
- A. Iron
- B. Calcium
- C. Folic acid
- D. Vitamin D
Correct Answer: C
Rationale: The correct answer is C: Folic acid. Folic acid is critical for preventing neural tube defects as it is essential for proper development of the neural tube in the fetus. It helps in the formation of the baby's brain and spinal cord. Iron (A) is important for preventing anemia, not neural tube defects. Calcium (B) is crucial for bone health but not directly related to neural tube development. Vitamin D (D) is important for calcium absorption, but not specifically for preventing neural tube defects. Overall, folic acid stands out as the most critical nutrient for this purpose.
What is the primary method of transmission for tuberculosis?
- A. Vector-borne
- B. Airborne
- C. Waterborne
- D. Fecal-oral
Correct Answer: B
Rationale: The correct answer is B: Airborne. Tuberculosis is primarily transmitted through the air via droplets released when an infected person coughs or sneezes. These droplets contain the bacteria that cause TB, which can then be inhaled by others and infect their lungs. This mode of transmission is supported by scientific evidence and is the most common way TB spreads.
Choice A: Vector-borne is incorrect because tuberculosis is not transmitted by insects or animals.
Choice C: Waterborne is incorrect as TB is not typically spread through contaminated water.
Choice D: Fecal-oral is incorrect since TB bacteria are not typically found in feces and transmitted through oral ingestion.
What is the recommended duration for exclusive breastfeeding according to the World Health Organization (WHO)?
- A. 3 months
- B. 6 months
- C. 9 months
- D. 12 months
Correct Answer: B
Rationale: The correct answer is B: 6 months. Exclusive breastfeeding is recommended by WHO for the first 6 months of a baby's life. This is because breast milk provides all the essential nutrients and antibodies needed for a baby's optimal growth and development during this critical period. Introducing other foods or liquids before 6 months can increase the risk of infections and allergies in infants. Choices A, C, and D are incorrect because they do not align with the WHO guidelines for exclusive breastfeeding duration.
What is the primary goal of health education?
- A. To diagnose diseases
- B. To change behavior for improved health
- C. To provide emergency medical care
- D. To perform surgeries
Correct Answer: B
Rationale: The primary goal of health education is to change behavior for improved health. This involves educating individuals on healthy lifestyle choices, preventive measures, and disease management strategies. By empowering individuals with knowledge and skills, health education aims to promote better health outcomes. Diagnosing diseases (choice A) and providing emergency medical care (choice C) are responsibilities of healthcare professionals, not the primary goal of health education. Performing surgeries (choice D) is a medical intervention and not within the scope of health education's primary goal.
What is the purpose of administering Vitamin K to newborns?
- A. To prevent jaundice
- B. To boost the immune system
- C. To prevent bleeding disorders
- D. To enhance bone development
Correct Answer: C
Rationale: The correct answer is C: To prevent bleeding disorders. Newborns have low levels of Vitamin K, which is essential for blood clotting. Administering Vitamin K at birth helps prevent a rare but serious condition called Vitamin K deficiency bleeding. Choice A is incorrect because Vitamin K does not prevent jaundice. Choice B is incorrect as Vitamin K does not boost the immune system. Choice D is incorrect as Vitamin K does not enhance bone development. Administering Vitamin K to newborns is crucial for preventing bleeding issues.