Nursing Elites

1. What is the primary function of hemoglobin in red blood cells?

• A. Oxygen transport
• B. Immunity
• C. Blood clotting
• D. Carbon dioxide transport

Correct answer: A

Rationale: The correct answer is A: Oxygen transport. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to tissues throughout the body, releasing it where needed. This process is essential for cellular respiration and energy production. Choices B, C, and D are incorrect because hemoglobin's primary function is not related to immunity, blood clotting, or carbon dioxide transport. Hemoglobin's main role is to transport oxygen, ensuring adequate oxygen supply to body tissues for metabolic processes.

2. When assisting an older male client recovering from a stroke to ambulate with a cane, where should the nurse place the cane in relation to the client's body?

• A. In front of the body to lean on while stepping forward
• B. On the opposite side of the affected extremity
• C. Approximately one foot away from the body to stabilize balance
• D. On the same side as the affected extremity

Correct answer: B

Rationale: The correct answer is B: 'On the opposite side of the affected extremity.' Placing the cane on the opposite side of the affected extremity provides maximum support and stability during ambulation for a client recovering from a stroke. This positioning helps to offload weight from the affected side and improves balance. Choice A is incorrect because placing the cane in front of the body can lead to incorrect weight distribution and instability. Choice C is incorrect as placing the cane one foot away from the body may not provide adequate support and can compromise balance. Choice D is incorrect as placing the cane on the same side as the affected extremity does not offer the necessary balance and support needed for safe ambulation.

3. During an inspection of a client's fingernails, the nurse notices a suspected abnormality in the shape and character of the nails. Which finding should the nurse document?

• A. Clubbed nails
• B. Splinter hemorrhages
• C. Longitudinal ridges
• D. Koilonychia or spoon nails

Correct answer: A

Rationale: Clubbed nails are a significant finding in clients with chronic hypoxia or lung disease. This abnormality is characterized by an increased curvature of the nails and softening of the nail bed. It can indicate underlying health conditions such as respiratory or cardiovascular issues. Splinter hemorrhages (B) are small areas of bleeding under the nails, typically associated with infective endocarditis. Longitudinal ridges (C) are often a normal age-related change in the nails. Koilonychia or spoon nails (D) present as a concave shape of the nails and are commonly seen in clients with iron deficiency anemia or hemochromatosis. Therefore, documenting clubbed nails is the most relevant abnormality to report and investigate further.

4. A client with a chest tube following a pneumothorax is concerned about the continuous bubbling in the water seal chamber. What should the nurse explain to the client?

• A. Continuous bubbling in the water seal chamber indicates an air leak.
• B. Continuous bubbling is normal and expected with a chest tube.
• C. Bubbling will stop when the lung has fully expanded.
• D. The nurse should notify the healthcare provider immediately.

Correct answer: A

Rationale: Continuous bubbling in the water seal chamber of a chest tube system indicates an air leak. An air leak can prevent the lung from fully re-expanding and may lead to complications like a recurrent pneumothorax. Therefore, it is crucial to investigate and address the air leak promptly. Choices B and C are incorrect because continuous bubbling is not normal and does not indicate lung expansion. Choice D is incorrect because the nurse should first assess and then report the issue to the healthcare provider.

5. What is the most common genetic cause of intellectual disability?

• A. Down syndrome
• B. Fragile X syndrome
• C. Prader-Willi syndrome
• D. Turner syndrome

Correct answer: B

Rationale: The correct answer is Fragile X syndrome because it is the most common inherited cause of intellectual disability, resulting from a mutation in the FMR1 gene. Down syndrome, Prader-Willi syndrome, and Turner syndrome are not the most common genetic causes of intellectual disability. Down syndrome is caused by the presence of an extra chromosome 21, Prader-Willi syndrome results from specific genetic abnormalities on chromosome 15, and Turner syndrome is characterized by the absence of part or all of one of the X chromosomes.

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