Nursing Elites

1. The final sentence suggests that users should approach social media with a healthy dose of

• A. Enthusiasm and optimism about its potential for connection and engagement.
• B. Skepticism and critical thinking towards the information encountered online.
• C. Acceptance of its flaws and a passive reliance on its features for interaction.
• D. Indifference towards its impacts and an absence of any effort to manage its use.

Correct answer: B

Rationale: The emphasis on "critical thinking" and "skepticism" suggests the importance of approaching social media with a cautious and discerning mind, aligning with B

2. The element responsible for the red color of blood is:

• A. Magnesium
• B. Iron
• C. Copper
• D. Zinc

Correct answer: B

Rationale: Hemoglobin, the protein responsible for carrying oxygen in red blood cells, contains iron in its heme group, contributing to the blood's characteristic red color.

3. Which blood type is a universal donor?

• A. A
• B. B
• C. AB
• D. O

Correct answer: D

Rationale: Rationale: Blood type O is considered the universal donor because individuals with type O blood can donate red blood cells to individuals with any ABO blood type (A, B, AB, or O) without causing an adverse reaction. This is because type O blood lacks A or B antigens on the surface of red blood cells, which helps minimize the risk of an immune response when transfused into individuals with different blood types. Therefore, type O blood is in high demand for blood transfusions in emergency situations when the recipient's blood type is unknown or when there is a shortage of specific blood types.

4. Damage to which part of the brain can lead to difficulty with language and speech?

• A. Broca's area
• B. Wernicke's area
• C. Occipital lobe
• D. Cerebellum

Correct answer: A

Rationale: The correct answer is A: Broca's area. Broca's area, located in the frontal lobe of the brain, is crucial for language production. Damage to Broca's area can result in expressive aphasia, where individuals have difficulty speaking fluently and forming coherent sentences. Wernicke's area, located in the temporal lobe, is responsible for understanding and interpreting language. Damage to Wernicke's area can lead to receptive aphasia, where individuals have difficulty understanding language. The occipital lobe is primarily responsible for processing visual information, while the cerebellum is involved in motor coordination and balance, not language and speech.

5. When you get a goosebump, which type of muscle tissue is responsible for causing the hair follicles to stand on end?

• A. Skeletal muscle
• B. Smooth muscle
• C. Cardiac muscle
• D. None of the above

Correct answer: B

Rationale: When you get a goosebump, the type of muscle tissue responsible for causing the hair follicles to stand on end is smooth muscle. Smooth muscle is found in the skin attached to hair follicles and is controlled by the autonomic nervous system. When stimulated by factors like cold or emotional responses, the smooth muscle contracts, causing the hair to stand up and creating goosebumps. Skeletal muscle (choice A) is responsible for voluntary movements, cardiac muscle (choice C) is found in the heart and is responsible for pumping blood, and none of the above (choice D) is incorrect as smooth muscle is the correct answer in this case.

6. The free edges of your fingernails and toenails are technically called the:

• A. Lunula (The lunula is the white crescent moon shape at the base of the nail)
• B. Matrix (The matrix is the area under the nail where new nail cells are produced)
• C. Hyponychium (This is the skin under the free edge of the nail)
• D. Free edge

Correct answer: D

Rationale: The free edges of your fingernails and toenails are the parts that extend beyond the fingertip or toe. These edges are commonly referred to simply as the "free edge" because they are not attached to the skin. The lunula is the white crescent moon shape at the base of the nail, the matrix is the area under the nail where new nail cells are produced, and the hyponychium is the skin under the free edge of the nail. Therefore, the correct answer is D.

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