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: The correct answer is A: Frequent handwashing. Handwashing is essential for preventing the spread of healthcare-associated infections as it helps remove and kill harmful bacteria and viruses. By washing hands regularly, healthcare workers can reduce the risk of transmitting infections between patients. Sharing medical equipment (B) can actually increase the spread of infections. Reducing patient turnover (C) can help minimize exposure, but without proper hand hygiene, infections can still spread. Increasing hospital bed capacity (D) is unrelated to preventing infections. Therefore, A is the most effective practice for infection control.
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Which of the following is an example of a live attenuated vaccine?
- A. Hepatitis B vaccine
- B. Inactivated polio vaccine
- C. Measles, Mumps, Rubella (MMR) vaccine
- D. Diphtheria, Tetanus, Pertussis (DPT) vaccine
Correct Answer: C
Rationale: The correct answer is C: Measles, Mumps, Rubella (MMR) vaccine. Live attenuated vaccines contain weakened forms of the virus. MMR vaccine is made from weakened live viruses of measles, mumps, and rubella. When administered, the body develops an immune response without causing the disease. Choice A, Hepatitis B vaccine, is a subunit vaccine. Choice B, Inactivated polio vaccine, is a killed virus vaccine. Choice D, Diphtheria, Tetanus, Pertussis (DPT) vaccine, is a toxoid vaccine. Live attenuated vaccines provide stronger and longer-lasting immunity as they mimic natural infection without causing illness.
Which of the following is an essential component of prenatal care?
- A. Routine immunizations
- B. Nutritional counseling
- C. Surgical interventions
- D. Radiologic exams
Correct Answer: B
Rationale: The correct answer is B: Nutritional counseling. Prenatal care focuses on ensuring the health of both the mother and the developing baby. Proper nutrition is essential for the well-being of both, as it supports the baby's growth and development and helps prevent complications for the mother. Nutritional counseling provides guidance on maintaining a balanced diet, taking necessary supplements, and managing any dietary restrictions during pregnancy. Routine immunizations (A) are important but not typically a primary component of prenatal care. Surgical interventions (C) and radiologic exams (D) are generally avoided during pregnancy unless absolutely necessary due to potential risks to the fetus. Therefore, B is the most essential component for prenatal care.
Which of the following is a benefit of exclusive breastfeeding?
- A. Reduces the risk of postpartum depression
- B. Increases the baby's risk of developing allergies
- C. Provides complete nutrition for the first 6 months
- D. Delays the return of menstrual periods
Correct Answer: C
Rationale: Exclusive breastfeeding provides complete nutrition for the first 6 months of a baby's life as breast milk contains all necessary nutrients. This is crucial for infant growth and development. It is recommended by health organizations worldwide. Other choices are incorrect: A is not directly related to breastfeeding, B is false as breastfeeding actually helps reduce allergies, and D is not a primary benefit of exclusive breastfeeding.
When educating a mother about the benefits of breastfeeding, what should be included?
- A. Breastfeeding reduces the risk of postpartum hemorrhage.
- B. Breastfeeding provides passive immunity to the infant.
- C. Breastfeeding increases the mother's risk of breast cancer.
- D. Breastfeeding delays the return of menstruation.
Correct Answer: B
Rationale: The correct answer is B: Breastfeeding provides passive immunity to the infant. Breast milk contains antibodies that help protect the baby from infections. This passive immunity is crucial for the infant's developing immune system.
A: Breastfeeding does not directly reduce the risk of postpartum hemorrhage.
C: Breastfeeding is actually associated with a reduced risk of breast cancer.
D: Breastfeeding can delay the return of menstruation due to hormonal changes, but this is not the main benefit of breastfeeding.
In summary, the key benefit of breastfeeding is providing passive immunity to the infant, which is crucial for their health and development.
Which of the following is a key strategy in the prevention of mother-to-child transmission of HIV?
- A. Exclusive breastfeeding
- B. Routine immunization
- C. Antiretroviral therapy
- D. Nutritional supplementation
Correct Answer: C
Rationale: The correct answer is C: Antiretroviral therapy. This is a key strategy because it involves giving HIV medications to the mother during pregnancy, labor, and delivery, as well as to the newborn, significantly reducing the risk of transmission. Antiretroviral therapy helps lower the viral load in the mother's body, making it less likely for the virus to be passed on to the child. Exclusive breastfeeding (choice A) can increase the risk of transmission, routine immunization (choice B) does not directly prevent mother-to-child transmission of HIV, and nutritional supplementation (choice D) is not a primary strategy for preventing transmission.