Nursing Elites

1. Which physiologic mechanism best describes the function of the sodium-potassium pump?

• A. active transport
• B. diffusion
• C. filtration
• D. osmosis

Correct answer: A

Rationale: Active transport is the correct answer as it accurately describes the process involved in the sodium-potassium pump. The pump utilizes energy to move ions against their concentration gradient, maintaining cellular concentrations. Diffusion (choice B) is a passive process where substances move from an area of higher concentration to lower concentration. Filtration (choice C) involves the movement of solutes based on pressure gradients. Osmosis (choice D) is the movement of water across a semipermeable membrane.

2. At what age will vision be 20/20 in children?

• A. 4 years old
• B. 5 years old
• C. 6 years old
• D. 7 years old

Correct answer: C

Rationale: The correct answer is 6 years old. At this age, children typically have the potential for 20/20 vision. This is considered the standard age for achieving optimal vision clarity. Choices A, B, and D are incorrect as they are not typically associated with the age at which children achieve 20/20 vision.

3. What is a chemical reaction between drugs before their administration or absorption known as?

• A. a drug incompatibility
• B. a side effect
• C. an adverse event
• D. an allergic response

Correct answer: A

Rationale: A chemical reaction between drugs before their administration or absorption is termed a drug incompatibility. This phenomenon commonly happens when drug solutions are mixed before intravenous administration, but it can also occur with orally administered drugs. Choices B, C, and D are incorrect because side effects, adverse events, and allergic responses occur after the administration and absorption of drugs, not prior to it.

4. Which of the following terms refers to soft tissue injury caused by blunt force?

• A. contusion
• B. strain
• C. sprain
• D. dislocation

Correct answer: A

Rationale: A contusion is a soft tissue injury caused by blunt force. It is an injury that does not break the skin, caused by a blow, and characterized by swelling, discoloration, and pain. The immediate application of cold might limit the development of a contusion. A strain is a muscle pull from overuse, overstretching, or excessive stress. A sprain is caused by a wrenching or twisting motion. A dislocation is a condition where the articular surfaces of the bones forming a joint are no longer in anatomical contact. Therefore, the correct answer is 'contusion' as it specifically relates to soft tissue injury caused by blunt force.

5. Which task would be appropriate for the LPN to perform?

• A. Changing a colostomy bag.
• B. Hanging a new bag of TPN.
• C. Drawing a peak antibiotic blood level from a central line.
• D. Administering IV pain medication to a two-day post-op client.

Correct answer: A

Rationale: The correct answer is changing a colostomy bag. This task falls within the LPN's scope of practice. LPNs are trained to provide basic nursing care, including assisting with activities of daily living and certain medical procedures like changing ostomy bags. Hanging a new bag of TPN and drawing a peak antibiotic blood level from a central line are tasks that require a higher level of training and are typically performed by RNs due to their complexity and potential risks. Administering IV pain medication to a two-day post-op client is usually the responsibility of an RN as it involves close monitoring, assessment of the client's condition, and the administration of potent medications that require a higher level of clinical judgment and expertise.

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