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. Before administration of a stat dose of potassium chloride IV for a client with hypokalemia, what is the most important action for the nurse?

• A. Ensure the IV is flowing freely
• B. Mix the medication thoroughly
• C. Check the client’s electrolyte levels
• D. Obtain a baseline ECG

Correct answer: A

Rationale: The most crucial action for the nurse before administering a stat dose of potassium chloride IV to a client with hypokalemia is to ensure the IV is flowing freely. A freely flowing IV is essential to safely and effectively deliver potassium chloride, helping to prevent infusion-related issues. Checking the client's electrolyte levels or obtaining a baseline ECG may be important but are not the most critical actions before administering the medication. Mixing the medication thoroughly is not applicable in this scenario as potassium chloride is typically provided ready to use.

3. The nurse is caring for a client who has just received a blood transfusion. The client reports chills and back pain. What is the nurse's priority action?

• A. Slow down the rate of the transfusion
• B. Administer an antipyretic
• C. Stop the transfusion immediately
• D. Notify the healthcare provider

Correct answer: C

Rationale: Chills and back pain are signs of a possible transfusion reaction, which can indicate severe complications like a hemolytic reaction or sepsis. The priority action for the nurse is to stop the transfusion immediately to prevent further harm to the client. Slowing the rate of the transfusion or administering an antipyretic will not address the underlying cause of the reaction and could potentially worsen the client's condition. Notifying the healthcare provider should be done after ensuring the client's immediate safety by stopping the transfusion.

4. During a routine prenatal visit, a nurse measures a client’s fundal height at 26 weeks gestation. What should the fundal height be?

• A. Approximately 26 cm
• B. Between 24 to 28 cm
• C. Above the umbilicus by two finger widths
• D. Below the xiphoid process

Correct answer: B

Rationale: The correct answer is B: 'Between 24 to 28 cm.' Fundal height is expected to be approximately equal to the weeks of gestation, so at 26 weeks, the fundal height should typically range between 24 to 28 cm. Choice A is incorrect because fundal height is not an exact measurement of gestational age in centimeters. Choice C is incorrect as it provides a general description above the umbilicus, which is not specific to 26 weeks gestation. Choice D is incorrect as the fundal height would not reach below the xiphoid process at 26 weeks gestation.

5. The nurse is changing the colostomy bag for a client who is complaining of leakage of diarrheal stool under the disposable ostomy bag. What action should the nurse implement to prevent leakage?

• A. Place a 4x4 wick in the stoma opening
• B. Apply a layer of zinc oxide ointment to the perimeter of the stoma
• C. Cut the bag opening to the measurement of the stoma size
• D. Administer a PRN antidiarrheal agent

Correct answer: C

Rationale: To prevent leakage of stool under the disposable ostomy bag, the nurse should cut the bag opening to the measurement of the stoma size. This action ensures a proper fit, which is crucial in preventing leaks that can lead to skin irritation and compromise stoma care. Placing a 4x4 wick in the stoma opening or applying zinc oxide ointment may not address the issue of leakage effectively. Administering a PRN antidiarrheal agent is not directly related to preventing leakage caused by an ill-fitting ostomy bag.

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