Nursing Elites

1. Which of the heart's four chambers is the largest and the strongest?

• A. Right atrium
• B. Left ventricle
• C. Right ventricle
• D. Left atrium

Correct answer: B

Rationale: The left ventricle is the largest and strongest chamber of the heart. It pumps oxygenated blood to the body, making it vital for systemic circulation. The right atrium receives deoxygenated blood from the body, the right ventricle pumps this blood to the lungs, and the left atrium receives oxygenated blood from the lungs.

2. What number is 6 equal to 15% of?

• A. 0.9
• B. 40
• C. 80
• D. 90

Correct answer: B

Rationale: To find the number that 6 is equal to 15% of, we set up the equation 0.15x = 6, where x is the unknown number. To solve for x, we divide 6 by 0.15, which gives us x = 40. Therefore, 6 is equal to 15% of the number 40. Choice A (0.9) is incorrect as it is not the result of dividing 6 by 0.15. Choices C (80) and D (90) are incorrect as they do not satisfy the equation 0.15x = 6.

3. What does Manifestation mean?

• A. A symptom or sign of a condition
• B. An indication or sign of a condition
• C. A treatment plan
• D. A type of diagnosis

Correct answer: B

Rationale: Manifestation means an indication or sign of a condition. It is not a treatment plan (choice C) or a type of diagnosis (choice D). While choice A is close, 'symptom' is more specific than 'indication' in this context, making choice B the most accurate.

4. A salt solution has a molarity of 5 M. How many moles of this salt are present in 0 L of this solution?

• A. 0
• B. 1.5
• C. 2
• D. 3

Correct answer: A

Rationale: Molarity is defined as the number of moles of solute per liter of solution. A molarity of 5 M indicates there are 5 moles of salt in 1 liter of the solution. Since the volume of the solution is 0 liters, multiplying the molarity by 0 liters results in 0 moles of salt (5 moles/L x 0 L = 0 moles). Therefore, the correct answer is 0. Option B, 1.5, is incorrect because it doesn't consider the volume being 0 liters. Options C and D, 2 and 3 respectively, are also incorrect as they do not account for the zero volume of the solution. Hence, there are no moles of salt present in 0 liters of the solution.

5. A hemostat would be used to limit ___________.

• A. pain
• B. bleeding
• C. fever
• D. coughing

Correct answer: B

Rationale: A hemostat is a surgical tool used to limit or control bleeding by clamping blood vessels during a surgical procedure. It helps to prevent excessive blood loss and maintain a clear surgical field, making it an essential instrument for managing bleeding during surgeries. Choices A, C, and D are incorrect as a hemostat is not used to limit pain, fever, or coughing, but specifically to control or limit bleeding.

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