Nursing Elites

1. Which of the following lines from the passage supports the inference that Hedy Lamarr worked earnestly to achieve her goals?

• A. She began starring in American films with MGM studios in the late 1930s and early 1940s
• B. She even spent time working with the science engineering team employed by Howard Hughes, the aviation tycoon
• C. Her roles generally did not include very many spoken lines and she became bored
• D. ... but she did not allow that to stop her from teaching herself in her spare time.

Correct answer: D

Rationale: The correct answer is D, as it showcases Hedy Lamarr's determination and hard work towards achieving her goals. Despite facing challenges, such as not having many spoken lines in her roles, she persevered by teaching herself in her spare time. Choice A talks about her success in starring in American films but does not directly relate to her working earnestly. Choice B mentions her collaboration with Howard Hughes' science engineering team, which indicates involvement but not necessarily hard work towards personal goals. Choice C describes her becoming bored due to the lack of spoken lines in her roles and does not highlight her dedication and effort to achieve her aspirations.

2. What was the mean time for the women who ran the 200m event at the 2008 Olympic Games (times in seconds: 22.33, 22.50, 22.50, 22.61, 22.71, 22.72, 22.83, 23.22)?

• A. 22.50 sec
• B. 22.66 sec
• C. 22.68 sec
• D. 22.77 sec

Correct answer: C

Rationale: To find the mean time, you need to add all the times (22.33 + 22.50 + 22.50 + 22.61 + 22.71 + 22.72 + 22.83 + 23.22) and then divide by the total number of times (8). This calculation results in a mean time of 22.68 seconds. Choice A, 22.50 sec, is incorrect because it is the time of one of the runners, not the mean time. Choice B, 22.66 sec, and Choice D, 22.77 sec, are also incorrect as they are not the calculated mean of the given times.

3. What does the T wave on an ECG correspond to?

• A. Atrial depolarization
• B. Ventricular depolarization
• C. Atrial repolarization
• D. Ventricular repolarization

Correct answer: D

Rationale: The T wave on an ECG corresponds to ventricular repolarization. Following ventricular depolarization, which is represented by the QRS complex, the ventricles undergo repolarization during the T wave. This phase signifies the recovery of ventricular muscle cells as they prepare for the subsequent depolarization cycle. Choices A, B, and C are incorrect because the T wave specifically reflects the repolarization of the ventricles, not the atria or their respective depolarization or repolarization phases.

4. What is the area of the largest circle that can fit entirely inside a rectangle that measures 8 centimeters by 10 centimeters?

• A. 18Ï€ cm²
• B. 10Ï€ cm²
• C. 16Ï€ cm²
• D. 8Ï€ cm²

Correct answer: C

Rationale: The largest circle that can fit inside the rectangle would have a diameter of 8 cm, which means the radius is half of the diameter, thus 4 cm. The area of a circle is calculated using the formula A = πr², where r is the radius. Substituting the radius value into the formula, the area of the circle is π(4)² = 16π cm². Therefore, the correct answer is 16π cm². Choice A (18π cm²), B (10π cm²), and D (8π cm²) are incorrect because they do not represent the area of the largest circle that fits inside the given rectangle.

5. What is the primary function of nephrons?

• A. Store urine
• B. Filter blood and remove waste products
• C. Produce hormones
• D. Control blood pressure

Correct answer: B

Rationale: Nephrons are the functional units of the kidneys responsible for filtering blood to remove waste products, excess ions, and water. This process leads to the formation of urine, aiding in maintaining the body's fluid and electrolyte balance. The primary function of nephrons is not to store urine but to filter blood and eliminate waste products. Choice C, 'Produce hormones,' is incorrect as nephrons primarily focus on filtration rather than hormone production. Choice D, 'Control blood pressure,' is also incorrect as while the kidneys do play a role in regulating blood pressure, it is not the primary function of nephrons within the kidneys.

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