Nursing Elites

1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the nurse set the client's intravenous infusion pump?

• A. 13 ml/hour.
• B. 63 ml/hour.
• C. 80 ml/hour.
• D. 125 ml/hour.

Correct answer: B

Rationale: The correct calculation involves dividing the total volume by the total time. In this case, 250 ml/4 hours = 63 ml/hour. The dose of KCl is not used in the calculation as the focus is on the rate of infusion over the specified time period. Choice A (13 ml/hour) is incorrect as it does not result from the correct calculation. Choice C (80 ml/hour) and Choice D (125 ml/hour) are also incorrect calculations and do not match the correct rate of infusion required.

2. A healthcare professional is teaching a new colleague about the correct administration of subcutaneous (subQ) injections. Which instruction should the healthcare professional include?

• A. Insert the needle at a 90-degree angle for subQ injections
• B. Aspirate for blood return before injecting the medication
• C. Pinch the skin before inserting the needle
• D. Massage the site after administering the injection

Correct answer: C

Rationale: Pinching the skin before inserting the needle is essential in elevating the subcutaneous tissue away from the muscle. This technique ensures that the medication is administered into the correct tissue layer, promoting proper absorption and decreasing the risk of injecting into muscle tissue.

3. When taking a client's blood pressure, the healthcare professional is unable to distinguish the point at which the first sound was heard. What is the best action for the healthcare professional to take?

• A. Deflate the cuff completely and immediately reattempt the reading.
• B. Reinflate the cuff completely and leave it inflated for 90 to 110 seconds before taking the second reading.
• C. Deflate the cuff to zero and wait 30 to 60 seconds before reattempting the reading.
• D. Document the exact level visualized on the sphygmomanometer where the first fluctuation was seen.

Correct answer: C

Rationale: The correct action when unable to distinguish the point of the first sound during blood pressure measurement is to deflate the cuff to zero and wait 30 to 60 seconds before reattempting the reading. This allows blood flow to return to the extremity, ensuring a more accurate reading the second time. It is important to ensure that the cuff is fully deflated and the appropriate wait time is given to obtain an accurate blood pressure measurement.

4. Which assessment data would provide the most accurate determination of proper placement of a nasogastric tube?

• A. Aspirating gastric contents to assure a pH value of 4 or less.
• B. Hearing air pass in the stomach after injecting air into the tubing.
• C. Examining a chest x-ray obtained after the tubing was inserted.
• D. Checking the remaining length of tubing to ensure that the correct length was inserted.

Correct answer: C

Rationale: The most accurate method to confirm the proper placement of a nasogastric tube is by examining a chest x-ray obtained after the tubing was inserted. This visual assessment allows healthcare providers to directly visualize the position of the tube in relation to anatomical landmarks, ensuring it is correctly placed in the stomach. Aspirating gastric contents or hearing air pass may provide some information but are not as definitive as a chest x-ray for confirming placement. Checking the remaining length of tubing is not a reliable method for determining proper placement as it does not indicate where the tip of the tube lies within the body.

5. Which serum laboratory value should the nurse monitor carefully for a client who has had an NG tube for suctioning for the past week?

• A. White blood cell count
• B. Albumin
• C. Calcium
• D. Sodium

Correct answer: D

Rationale: The nurse should carefully monitor serum sodium levels for a client with an NG tube on suction for an extended period due to potential fluid loss and the risk of developing hyponatremia, an electrolyte imbalance. Hyponatremia can occur as a result of continual suctioning leading to fluid loss, making it crucial to monitor sodium levels to prevent complications associated with low sodium levels. Monitoring white blood cell count, albumin, or calcium is not directly related to the impact of NG tube suction on fluid and electrolyte balance, so these values are not the priority in this scenario.

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