Nursing Elites

1. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?

• A. Filtration
• B. Diffusion
• C. Osmosis
• D. Active transport

Correct answer: C

Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.

2. When using a metered-dose inhaler (MDI), which step is most important for ensuring effective medication delivery?

• A. Exhale completely before using the inhaler
• B. Inhale quickly while pressing down on the inhaler
• C. Shake the inhaler for 10 seconds before use
• D. Hold breath for 5 seconds after inhaling

Correct answer: A

Rationale: The correct step to ensure effective medication delivery when using a metered-dose inhaler (MDI) is to exhale completely before using the inhaler. This action helps create more space in the lungs for the medication to reach deeply into the airways. Inhaling quickly while pressing down on the inhaler (Choice B) may cause the medication to impact the throat rather than reaching the lungs. Shaking the inhaler for 10 seconds before use (Choice C) is important to mix the medication but not the most crucial step for effective delivery. While holding the breath for 5 seconds after inhaling (Choice D) can help the medication stay in the lungs momentarily, exhaling completely before inhalation is more critical for optimal drug deposition.

3. The nurse observes a client with new-onset tachycardia. What should the nurse do first?

• A. Check for the client's temperature
• B. Administer prescribed beta-blockers
• C. Assess for any chest pain or discomfort
• D. Monitor the client's blood pressure

Correct answer: C

Rationale: When a client presents with new-onset tachycardia, the first action the nurse should take is to assess for any associated symptoms like chest pain or discomfort. This is important to differentiate the potential causes of tachycardia and guide appropriate interventions. Checking the client's temperature (Choice A) may be relevant in certain situations but is not the priority when tachycardia is observed. Administering prescribed beta-blockers (Choice B) should only be done after a comprehensive assessment and healthcare provider's orders. Monitoring the client's blood pressure (Choice D) is important, but assessing for chest pain or discomfort takes precedence in this scenario to rule out cardiac causes of tachycardia.

4. A client with diabetes mellitus is admitted with hyperglycemia. What is the priority nursing action?

• A. Administer insulin as prescribed
• B. Encourage fluid intake
• C. Monitor blood glucose levels frequently
• D. Assess for signs of hypoglycemia

Correct answer: A

Rationale: Administering insulin is the priority nursing action for a client admitted with hyperglycemia due to diabetes mellitus. Insulin helps lower blood glucose levels and prevent further complications associated with hyperglycemia. Encouraging fluid intake is important but not the priority as insulin administration takes precedence to address the immediate hyperglycemic state. Monitoring blood glucose levels frequently is essential but comes after administering insulin to ensure the treatment's effectiveness. Assessing for signs of hypoglycemia is incorrect as the client is admitted with hyperglycemia, which requires raising blood glucose levels, not lowering them further.

5. After placing a client at 26-weeks gestation in the lithotomy position, the client complains of dizziness and becomes pale and diaphoretic. What action should the nurse implement?

• A. Instruct the client to take deep breaths.
• B. Place a wedge under the client's hip.
• C. Place the client in the Trendelenburg position.
• D. Remove the client's legs from the stirrups.

Correct answer: B

Rationale: Placing a wedge under the client's hip is the correct action in this scenario. This helps relieve the pressure on the vena cava, which can become compressed in the lithotomy position during pregnancy, improving circulation and reducing symptoms like dizziness and pallor. Instructing the client to take deep breaths (Choice A) may not address the underlying cause of the symptoms. Placing the client in the Trendelenburg position (Choice C) would worsen the situation by further compressing the vena cava. Removing the client's legs from the stirrups (Choice D) may provide temporary relief but does not address the root cause of the issue.

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