Nursing Elites

1. What does a QRS Complex represent in an ECG reading?

• A. Atrial depolarization
• B. Ventricular repolarization
• C. Ventricular depolarization
• D. End of ventricular depolarization

Correct answer: C

Rationale: The QRS Complex in an ECG reading represents ventricular depolarization, which is the process of the heart's ventricles preparing to contract by changing the electrical charge in the cell, hence choice 'C' is the correct answer. Choice 'A' is incorrect because atrial depolarization is represented by the P wave in an ECG reading, not the QRS Complex. Choice 'B' is incorrect as ventricular repolarization is depicted by the T wave, not the QRS Complex. Finally, choice 'D' is also incorrect because the QRS Complex is not the end of ventricular depolarization, but the process itself.

2. A nurse is planning teaching for the parents of a toddler who follows a vegetarian diet. The nurse should plan to include which of the following foods as the best source of dietary protein for the child?

• A. Soy milk
• B. Peanut butter
• C. Dried beans
• D. Whole grains

Correct answer: C

Rationale: Dried beans are the best source of dietary protein for a toddler following a vegetarian diet. They are rich in protein and other essential nutrients. Soy milk, while a good source of protein, may not provide as much protein density as dried beans. Peanut butter is a good source of protein but may not be as protein-dense as dried beans. Whole grains are not as high in protein content compared to dried beans, making them a less optimal choice for meeting the toddler's protein needs.

3. In PEM, which condition is characterized by symptoms such as muscle weakness, hanging skin, delayed tooth eruption, and changes in saliva?

• A. Marasmus
• B. Kwashiorkor
• C. Anemia
• D. Noma

Correct answer: A

Rationale: The correct answer is Marasmus. Marasmus is a severe form of protein-energy malnutrition (PEM) that leads to muscle wasting, hanging skin, delayed growth, and changes in saliva. These symptoms are commonly seen in vulnerable populations such as children, homeless individuals, older adults, and substance abusers. Kwashiorkor, on the other hand, is characterized by edema, a distended belly, and skin lesions. Anemia is a condition characterized by a low red blood cell count, leading to fatigue and weakness. Noma is a severe infection affecting the face, particularly the mouth and jaw area.

4. Which nutrient is most important for pregnant women to prevent neural tube defects?

• A. Iron
• B. Folate
• C. Calcium
• D. Vitamin D

Correct answer: B

Rationale: Folate (or folic acid) is crucial for the prevention of neural tube defects during pregnancy.

5. In which type of shock does the patient experience a mismatch of blood flow to the cells?

• A. Distributive
• B. Cardiogenic
• C. Hypovolemic
• D. Septic

Correct answer: A

Rationale: The correct answer is A: Distributive shock. Distributive shock is characterized by a widespread increase in vascular permeability leading to a relative hypovolemia and a mismatch of blood flow to the cells. Choice B, Cardiogenic shock, is due to the heart's inability to pump effectively. Choice C, Hypovolemic shock, results from a decrease in intravascular volume. Choice D, Septic shock, is caused by a systemic response to infection.

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