Nursing Elites

1. What verb tense is used in the underlined words in the following sentence? 'The doctor prescribed medicine after my son had been sick for four days.'

• A. Past perfect
• B. Present perfect
• C. Past progressive
• D. Present progressive

Correct answer: A

Rationale: The correct answer is 'A: Past perfect.' In the sentence, 'had been sick' is in the past perfect tense. The past perfect tense is formed with 'had' + the past participle of the main verb. In this sentence, it indicates an action that was completed before another past action. Choices B, C, and D are incorrect because the sentence does not contain the present perfect, past progressive, or present progressive tenses as indicated by the underlined words. The present perfect tense would require 'has' or 'have' + past participle, the past progressive would involve 'was' or 'were' + present participle, and the present progressive would include 'am', 'is', or 'are' + present participle, none of which are present in the sentence.

2. Which of the following menu items fulfills her dietary requirements?

• A. Tofu-mushroom-spinach lasagna
• B. Veggie burger on a whole-grain bun
• C. Salmon with cream sauce
• D. Stuffed baked potato with vegetable soup

Correct answer: A

Rationale: The correct answer is A, the tofu-mushroom-spinach lasagna. Mirella is an ovo-lacto vegetarian, meaning she eats eggs and dairy but avoids animal flesh. This dish meets her dietary requirements as it is a vegetarian option that contains tofu and cheese for protein. Additionally, since Mirella has a wheat allergy, she can choose a lasagna recipe with alternative noodles or omit noodles altogether. Choice B, the veggie burger, may contain wheat in the bun, which is not suitable for Mirella. Choice C, salmon with cream sauce, contains animal flesh and is not vegetarian. Choice D, stuffed baked potato with vegetable soup, may include wheat products in the soup, making it unsuitable for Mirella's wheat allergy.

3. Complete the following equation: 5 + 3 × 4 - 6 / 2 = ?

• A. 5
• B. 9
• C. 11
• D. 7

Correct answer: B

Rationale: To solve this equation, follow the order of operations (PEMDAS/BODMAS): First, perform multiplication and division from left to right. 3 × 4 equals 12, and 6 / 2 equals 3. Then, carry out addition and subtraction from left to right. 5 + 12 - 3 equals 14, not 9. Therefore, the correct answer is 14, making choice B the correct answer. Choices A, C, and D can be eliminated as they do not match the correct result obtained by following the order of operations.

4. What is the significance of studying pedigrees in human genetics?

• A. Predicting the exact outcome of genetic crosses in humans.
• B. Tracing the inheritance of complex traits with multiple contributing genes.
• C. Identifying carriers of dominant genetic disorders.
• D. Determining the risk of acquiring a specific mutation de novo.

Correct answer: B

Rationale: Pedigrees are diagrams that show the relationships within a family and can be used to track the inheritance patterns of specific traits or diseases. While pedigrees can provide information on the inheritance of single gene disorders (such as identifying carriers of dominant genetic disorders, as mentioned in option C), their primary significance lies in studying complex traits with multiple contributing genes. These traits do not follow simple Mendelian inheritance patterns and are influenced by both genetic and environmental factors. By analyzing pedigrees, researchers can identify patterns of inheritance for complex traits, such as polygenic diseases or traits influenced by gene-environment interactions. Therefore, option B is the most appropriate choice as it captures the main significance of studying pedigrees in human genetics.

5. What happens during expiration?

• A. The diaphragm contracts and the thoracic cavity expands.
• B. The diaphragm relaxes and the thoracic cavity contracts.
• C. The thoracic cavity expands, increasing pressure.
• D. The diaphragm relaxes and moves upward.

Correct answer: B

Rationale: The correct answer is B. During expiration, the diaphragm relaxes, causing the thoracic cavity to contract. As the thoracic cavity decreases in size, the pressure inside the lungs increases, leading to air flowing out of the lungs. This process helps to expel carbon dioxide-rich air from the body. Choices A, C, and D are incorrect. In choice A, the diaphragm contracting and the thoracic cavity expanding describes inspiration, not expiration. Choice C is incorrect because during expiration, the thoracic cavity actually decreases in size. Choice D is incorrect as the diaphragm moving upward is not a typical movement associated with expiration.

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