Nursing Elites

1. An adult client undergoes various diagnostic tests to determine the pumping ability of the heart. The nurse notes that the results of these tests indicate that the client's cardiac output is 5 L/min. The nurse makes which conclusion?

• A. The client has a low cardiac output.
• B. The client has a high cardiac output.
• C. The client has a normal cardiac output.
• D. The client will need a blood transfusion.

Correct answer: C

Rationale: A cardiac output of 5 L/min falls within the normal range for a resting adult, which typically ranges between 4 and 6 L/min. Cardiac output is calculated as the stroke volume (volume of blood in each systole) multiplied by the heart rate. Therefore, a cardiac output of 5 L/min is considered normal. Choices A and B are incorrect as they misinterpret the result as either low or high, which is not the case based on the provided information. Choice D is unrelated to the client's cardiac output and thus incorrect.

2. The LPN is about to give 100 mg Lopressor (metoprolol) to a client. Before administering the drug, they take the patient's vitals, which are as follows: Pulse: 58 Blood Pressure: 90/62 Respirations: 18/minute What action should the LPN take?

• A. Give the client half the prescribed dose and report the findings to the RN on duty.
• B. Give the client double the dose and report the findings to the RN on duty.
• C. Administer the drug and report the findings to the RN on duty.
• D. Hold the drug and report the findings to the RN on duty.

Correct answer: D

Rationale: Lopressor is given to treat hypertension, and a pulse of 58 and a blood pressure of 90/62 are considered low. To prevent the client from bottoming out, the drug should be held, and the findings reported to the RN, who should consult with the attending physician. LPNs should never adjust client dosing, as that is outside of their scope of practice. It is crucial to follow facility guidelines, which often recommend holding blood pressure medication at 60 bpm and a systolic pressure of 90 or less. By holding the drug and notifying the RN, the LPN ensures the client's safety and allows for appropriate assessment and decision-making by the healthcare team. Giving half the dose or double the dose without proper authorization can lead to serious complications and is considered unsafe practice.

3. A school nurse provides information to the parents of school-age children regarding appropriate dental care. The nurse tells the parents that their children should perform which action?

• A. Brush and floss their teeth after meals and at bedtime
• B. Brush their teeth every morning and at bedtime and floss the teeth once a day, preferably at bedtime
• C. Brush their teeth every morning and at bedtime
• D. Brush and floss their teeth every morning and at bedtime

Correct answer: A

Rationale: School-age children are capable of taking responsibility for their own dental hygiene. Establishing good oral health habits during childhood can lead to a lifetime of cavity prevention. The nurse advises the parents that their children should brush with fluoride toothpaste and floss between their teeth after meals and before bedtime. This routine helps maintain good oral health and teaches children the importance of dental care. Choice A is the correct answer as it emphasizes both brushing and flossing after meals and at bedtime, which are crucial for effective dental care. Choices B, C, and D are incorrect as they do not stress the significance of both brushing and flossing after meals, which is essential for proper oral hygiene.

4. What is the therapeutic range for carbamazepine (Tegretol)?

• A. 7-12 mcg/mL
• B. 4-10 mcg/mL
• C. 10-14 mcg/mL
• D. 1-5 mcg/mL

Correct answer: B

Rationale: The therapeutic range for carbamazepine (Tegretol) is 4-10 mcg/mL. This range is established based on the optimal balance between effectiveness and safety. Choices A, C, and D are outside the therapeutic range for carbamazepine, which could lead to suboptimal treatment outcomes or increased risk of toxicity. Choice B (4-10 mcg/mL) is the correct range recommended for therapeutic efficacy while minimizing adverse effects.

5. An amniocentesis is scheduled for a pregnant client in the third trimester. The nurse informs the client that the most common indication for amniocentesis during the third trimester is for which reason?

• A. Determination of whether alpha-fetoprotein (AFP) is present in the amniotic fluid
• B. Checking the amniotic fluid for intrauterine infection
• C. Determination of fetal lung maturity
• D. Checking the fetal cells for chromosomal abnormalities

Correct answer: C

Rationale: The most common indication for amniocentesis in the third trimester is the determination of fetal lung maturity. This assessment is essential to evaluate the fetus's readiness for extrauterine life. Checking for alpha-fetoprotein (AFP) in the amniotic fluid is more commonly associated with midtrimester amniocentesis to identify chromosomal abnormalities. Assessing for intrauterine infection is not a primary reason for amniocentesis in the third trimester. While checking fetal cells for chromosomal abnormalities is a common indication for midtrimester amniocentesis, it is not the most common indication in the third trimester.

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