Nursing Elites

1. 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.

2. What is the MOST common cause of shock in infants and children?

• A. Severe allergic reaction
• B. Dehydration
• C. Accidental poisoning
• D. Cardiac failure

Correct answer: B

Rationale: Dehydration is the most common cause of shock in infants and children. In children, the body's fluid reserves are smaller compared to adults, making them more susceptible to dehydration, which can lead to shock if not promptly addressed. Severe allergic reactions, accidental poisoning, and cardiac failure can also cause shock, but dehydration is the most frequent cause in this age group.

3. The word hormone is derived from the Greek 'hormao' meaning 'I excite or arouse.' Hormones communicate this effect through their unique chemical structures recognized by specific receptors on their target cells, their patterns of secretion, and their concentrations in the general or local circulation. Which of the following is NOT a function of hormones?

• A. Producing new offspring
• B. Promoting growth and enhancing beauty
• C. Maintaining body temperature
• D. Fighting infections

Correct answer: A

Rationale: Hormones play a crucial role in various bodily functions such as regulating metabolism, growth, and maintaining homeostasis. However, producing new offspring involves reproductive processes controlled by other systems in the body, not directly by hormones.

4. The healthcare provider is teaching a new mother how to care for her newborn's umbilical cord. Which instruction should be included?

• A. Keep the cord dry and exposed to air
• B. Clean the cord with alcohol at every diaper change
• C. Cover the cord with a sterile dressing
• D. Submerge the cord in water during baths

Correct answer: A

Rationale: Keeping the umbilical cord dry and exposed to air is the correct instruction because it promotes faster healing. Moisture can delay the healing process and increase the risk of infection. Cleaning the cord with alcohol at every diaper change or covering it with a sterile dressing can actually impede the healing process by preventing airflow. Submerging the cord in water during baths is not recommended as it can introduce moisture and increase the risk of infection.

5. A 3-year-old female presents with respiratory distress. She is conscious, crying, and clinging to her mother. She has mild intercostal retractions and an oxygen saturation of 93%. The MOST effective way of delivering oxygen to her involves:

• A. gently restraining her and assisting with ventilations.
• B. ventilations with a flow-restricted, oxygen-powered device.
• C. a non-rebreathing mask with the flow rate set at 6 to 8 L/min.
• D. asking the mother to hold an oxygen mask near her face.

Correct answer: C

Rationale: In a pediatric patient with respiratory distress, a non-rebreathing mask with a flow rate set at 6 to 8 L/min is the most effective way to deliver oxygen. This method ensures a high concentration of oxygen is delivered to the child, aiding in improving oxygen saturation levels. In this scenario, the mother can assist in holding the mask to maintain comfort and cooperation in the child while ensuring proper oxygen delivery.

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