Nokea
Which vaccine leaves a permanent scar at the site of injection?
- A. BCG
- B. DPT
- C. Hepatitis B vaccine
- D. Measles vaccine
Correct Answer: A
Rationale: The correct answer is A: BCG. BCG vaccine is administered through intradermal injection, leaving a small scar due to the immune response it triggers. The scar formation is a characteristic feature of the BCG vaccine and is used as an indicator of successful vaccination. Other vaccines like DPT, Hepatitis B, and Measles do not typically leave a permanent scar at the injection site. The scar formation with BCG vaccine is a result of the body's immune response to the live attenuated Mycobacterium bovis strain in the vaccine, leading to a localized inflammatory reaction and subsequent scarring.
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Knowing that malnutrition is a common community health issue, you decided to conduct a nutritional assessment. What population is particularly vulnerable to protein-energy malnutrition (PEM)?
- A. Pregnant women and the elderly
- B. Under 5-year-old children
- C. 1-4-year-old children
- D. School-age children
Correct Answer: B
Rationale: The correct answer is B, under 5-year-old children. They are particularly vulnerable to protein-energy malnutrition (PEM) due to their high nutritional needs for growth and development. Infants and young children have limited food intake capacity and are dependent on caregivers for proper nutrition. This age group is at a critical stage of growth, making them more susceptible to the negative impact of malnutrition on physical and cognitive development. Pregnant women and the elderly (choice A) have specific nutritional needs but are not as vulnerable to PEM as young children. Choices C and D are incorrect as 1-4-year-old children and school-age children have a lower risk of PEM compared to under 5-year-old children.
Which vitamin deficiency in the pregnant woman may cause neural tube defects?
- A. Niacin
- B. Riboflavin
- C. Folic Acid
- D. Thiamine
Correct Answer: C
Rationale: The correct answer is C: Folic Acid. Folic Acid deficiency during pregnancy is associated with an increased risk of neural tube defects in the developing fetus. Folic acid is crucial for proper neural tube formation in early pregnancy. Niacin (A), Riboflavin (B), and Thiamine (D) deficiencies do not directly impact neural tube development. Niacin is important for energy production, riboflavin for cell growth and function, and thiamine for nerve function, but they do not specifically affect neural tube closure like folic acid does.
In calculating the crude death rate of your municipality, with a total population of about 18,000 last year, there were 94 deaths. Among the deceased, 20 died due to heart diseases, and 32 were aged 50 years or older. What is the crude death rate?
- A. 4.1/1000
- B. 5.2/1000
- C. 6.3/1000
- D. 7.3/1000
Correct Answer: B
Rationale: To calculate the crude death rate, divide the total number of deaths by the total population and then multiply by 1000. In this case, 94 deaths out of 18,000 population is (94/18000)*1000 = 5.2/1000. This is the correct answer (B). Choice A (4.1/1000) is incorrect as it underestimates the death rate. Choice C (6.3/1000) and D (7.3/1000) are both overestimations of the death rate based on the given data.
In immunization, which of the following measures is considered the most effective in controlling the occurrence of diseases?
- A. Immunization coverage
- B. Cold chain
- C. Potency of vaccines
- D. Health education
Correct Answer: A
Rationale: The correct answer is A: Immunization coverage. This is the most effective measure as it ensures a high percentage of the population is vaccinated, leading to herd immunity. This reduces the spread of diseases. Cold chain (B) ensures vaccine quality but doesn't directly control disease occurrence. Potency of vaccines (C) is important but doesn't address population coverage. Health education (D) is valuable but doesn't directly prevent disease spread like high immunization coverage does.
In a mother's class, you discuss proper breastfeeding technique. Which of these is a sign that the baby has latched on the breast properly?
- A. The baby takes shallow, rapid sucks
- B. The mother does not feel nipple pain
- C. The baby's mouth is only partly open
- D. Only the mother's nipple is inside the baby's mouth
Correct Answer: B
Rationale: The correct answer is B because if the mother does not feel nipple pain, it indicates that the baby has latched on properly. Nipple pain is a common sign of improper latch, which can lead to discomfort and ineffective breastfeeding. The other choices are incorrect: A indicates ineffective sucking, C suggests a shallow latch, and D signifies a shallow latch that only involves the nipple, not the areola, leading to potential issues with milk transfer and nipple pain.