To prevent diarrhea in children, a vaccine is available against which of the following?
- A. Adenovirus
- B. Rotavirus
- C. Enterovirus
- D. All of the above
Correct Answer: B
Rationale: The correct answer is B - Rotavirus. Rotavirus vaccine is available to prevent diarrhea in children. Rotavirus is a common cause of severe diarrhea in infants and young children globally, and vaccination has been shown to be effective in reducing the burden of this disease. Choices A and C are incorrect because there is no specific vaccine available for Adenovirus or Enterovirus to prevent diarrhea in children. Choice D is incorrect because while vaccines are available for some viruses that can cause diarrhea in children, not all mentioned in the choices have a specific vaccine available.
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Which of the following is not an infectious cause of diarrhea?
- A. Allergy
- B. Bacteria
- C. Parasite
- D. Virus
Correct Answer: A
Rationale: The correct answer is A: Allergy. Allergy is not an infectious cause of diarrhea. Diarrhea caused by bacteria, parasites, and viruses is due to infection, while an allergy triggers an immune response that can lead to diarrhea but is not caused by an infectious agent. Choices B, C, and D are incorrect because bacteria, parasites, and viruses are known infectious causes of diarrhea, resulting from infections by these microorganisms.
A breastfeeding mother reports to the nurse that her newborn nurses every hour and never seems satisfied. Which advice should the nurse provide?
- A. Supplement breastfeeding with formula after each nursing session.
- B. Allow the newborn to nurse on each breast for at least 20 minutes.
- C. Reduce the number of nursing sessions to every 2-3 hours.
- D. Ensure the newborn has a proper latch and is effectively nursing.
Correct Answer: D
Rationale: The nurse should ensure that the newborn has a proper latch and is effectively nursing. Sometimes, newborns nurse frequently for comfort even when they are effectively latched. It is essential to address the latch first before considering other interventions. Supplementing with formula (Choice A) may decrease the mother's milk supply. Allowing the newborn to nurse for a set time (Choice B) may not address the underlying latch issue. Reducing nursing sessions (Choice C) may lead to decreased milk production and does not address the latch problem.
Sometimes, people with congestive heart failure develop arrhythmias of the heart. These irregular rhythms can be conducive to developing a blood clot. Physicians frequently treat people with 'blood thinning' medicines that require regulation of the density of the blood. Which of these is the name for a blood-thinner?
- A. Erythromycin
- B. Tetracycline
- C. Warfarin
- D. Amoxicillin
Correct Answer: C
Rationale: Warfarin is a medication commonly used as a blood thinner to prevent blood clot formation. It works by inhibiting the clotting factors in the blood, thereby reducing the risk of clot formation and helping in the management of conditions like congestive heart failure and arrhythmias. Choices A, B, and D are antibiotics and do not have blood-thinning properties like Warfarin.
A 3-year-old child has been admitted to your pediatric ward. The doctor gave a provisional diagnosis of respiratory tract infection. After careful assessment and history, a final diagnosis of lower respiratory infection was made. Which of the following signs will confirm the diagnosis?
- A. Cough
- B. Fever
- C. Inability to lie supine
- D. Inability to eat
Correct Answer: C
Rationale: Inability to lie supine is a characteristic sign of lower respiratory infection. This positioning preference is often seen in patients with lower respiratory infections due to discomfort or difficulty breathing when lying flat on their back. While cough and fever are common symptoms associated with respiratory infections, they are not specific to lower respiratory infections. Inability to eat may indicate general illness or discomfort but is not a specific indicator of lower respiratory infection.
Which of the following drinks is recommended for reconstituting oral rehydration salts?
- A. Water
- B. Fruit juice
- C. Soda
- D. All of the above
Correct Answer: A
Rationale: The correct answer is A: Water. Water is the ideal fluid to reconstitute oral rehydration salts because it helps in proper hydration without adding unnecessary sugars or acidity that may be present in fruit juice or soda. Using water ensures the salts are properly dissolved and can effectively rehydrate the individual. Choices B and C are incorrect because fruit juice and soda may contain sugars or acidity that can interfere with the rehydration process and are not recommended for reconstituting oral rehydration salts.