Nursing Elites

1. Select the meaning of the underlined word in the following sentence. All volatile liquids should be stored and labeled correctly.

• A. Unstable
• B. Abnormal
• C. Lethal
• D. Blended

Correct answer: A

Rationale: In the context of the sentence, 'volatile' means likely to change rapidly and unpredictably or evaporate quickly. When referring to liquids, volatile typically implies that the liquids are unstable and can easily change from liquid to gas. Therefore, the most appropriate meaning of 'volatile' in this sentence is 'unstable.' Choices B, C, and D are incorrect because 'abnormal' and 'lethal' do not capture the essence of rapid change or evaporation associated with volatile liquids, while 'blended' is unrelated to the characteristics of volatile liquids described in the sentence.

2. What is the primary function of the lymphatic system?

• A. Transport oxygen to cells
• B. Remove carbon dioxide from the body
• C. Produce hormones
• D. Transport nutrients

Correct answer: B

Rationale: The correct answer is B: Remove carbon dioxide from the body. The primary function of the lymphatic system is to return excess tissue fluid to the bloodstream and assist in the body's defense against infections by filtering out harmful pathogens and foreign particles. Choices A, C, and D are incorrect because transporting oxygen to cells is mainly done by the circulatory system, hormone production is primarily carried out by endocrine glands, and nutrient transport is also a function of the circulatory system and the digestive system, not the lymphatic system.

3. Select the word that makes the following sentence grammatically correct. The nursing staff ___________ to serve their patients well.

• A. hope
• B. hopes
• C. hoping
• D. does hope

Correct answer: B

Rationale: The subject 'The nursing staff' is a collective noun that is considered singular. Therefore, the correct verb form to use is 'hopes.' The verb 'hopes' agrees with the singular subject, making the sentence grammatically correct. Choice A ('hope') is incorrect because it is not the correct verb form for a singular subject. Choice C ('hoping') is incorrect as it is a gerund and does not function as the verb in this sentence. Choice D ('does hope') is incorrect as it introduces unnecessary emphasis and does not match the subject-verb agreement required in the sentence.

4. Two 5-ohm resistors are placed in series and wired into a 100-V power supply. What current flows through this circuit?

• A. 2 A
• B. 10 A
• C. 20 A
• D. 50 A

Correct answer: B

Rationale: In a series circuit, the total resistance is the sum of the individual resistances. Therefore, the total resistance in this circuit is 5 ohms + 5 ohms = 10 ohms. Using Ohm's Law (V = I × R), we can find the current (I) by dividing the voltage (V) by the total resistance (R). I = V / R = 100 V / 10 ohms = 10 A. Choice A (2 A) is incorrect because it does not account for the total resistance of the circuit. Choice C (20 A) and Choice D (50 A) are also incorrect as they provide values that are not consistent with the calculations based on the given values in the question.

5. What is the function of the pituitary gland?

• A. Regulating metabolism
• B. Producing bile
• C. Filtering blood
• D. Controlling muscle movement

Correct answer: A

Rationale: The pituitary gland, known as the 'master gland,' plays a crucial role in regulating various physiological processes by secreting hormones that control other endocrine glands. This includes the regulation of metabolism, growth, reproduction, stress response, and more. Therefore, the correct function of the pituitary gland is regulating metabolism, making choice A the correct answer. Choices B, C, and D are incorrect as the pituitary gland is not involved in producing bile, filtering blood, or controlling muscle movement.

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