A nurse is caring for a client who is prescribed tetracycline 2 grams daily PO in four divided doses every 6 hr. Available is tetracycline 250 mg capsules. How many capsules should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["2"]

To calculate the number of capsules that the nurse should administer per dose, the nurse should first divide the total daily dose of tetracycline by the number of doses per day. This gives the dose per administration:

2 grams / 4 doses = 0.5 grams per dose

Next, the nurse should convert the dose from grams to milligrams, since the available capsules are in milligrams. There are 1000 milligrams in one gram, so the nurse should multiply the dose by 1000:

0.5 grams x 1000 mg/g = 500 mg per dose

Finally, the nurse should divide the dose in milligrams by the strength of each capsule, which is 250 mg. This gives the number of capsules that the nurse should administer per dose:

500 mg / 250 mg/capsule = 2 capsules per dose

Therefore, the nurse should administer 2 capsules of tetracycline every 6 hours to the client.

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Correct Answer is C

Explanation

A. "You are being unreasonable, and I will not call your doctor at this hour."

This response is confrontational and dismissive of the client's request. It does not promote a therapeutic interaction and might escalate the situation.

B. "Go back to your room, and I'll try to get in touch with your doctor."

This response might temporarily calm the client, but it’s misleading if the nurse does not intend to call the doctor. It also avoids addressing the client's immediate emotional needs and could result in a loss of trust if the nurse doesn’t follow through.

C. "You must be very upset about something."

This is the most therapeutic response. It acknowledges the client’s feelings without judgment and opens up communication. It allows the nurse to explore the client’s concerns, which is essential in providing appropriate care and support in a psychiatric setting.

D. "I can't call a doctor in the middle of the night unless it's an emergency."

While this statement is factually correct, it can come across as dismissive and could escalate the client's agitation. It does not acknowledge the client's emotions and might make the client feel that their concerns are not being taken seriously.

A. A client runs 4 miles outdoors every afternoon. B. The client eats 2 to 3 gm of sodium-containing foods daily. C. The client drinks 2 liters of liquids daily. D. The client eats foods high in tyramine.

Correct Answer is A

Explanation

A.Lithium is excreted through the kidneys, and dehydration and sodium depletion increase the risk of lithium toxicity. A client who runs 4 miles outdoors every afternoon is at risk of excessive sweating and fluid loss, which can lead to dehydration and sodium depletion. This reduces lithium excretion, leading to toxic levels in the blood.

B. Anormal sodium intake helps maintain lithium balance. A low sodium intake increases lithium retention, but 2-3 grams/day is within the normal recommended range.

C. Adequate hydration helps prevent lithium toxicity. Clients on lithium should drink 2–3 liters of fluid daily to promote kidney function and lithium excretion.
D. Tyramine-rich foods (e.g., aged cheese, cured meats) are a concern for clients on monoamine oxidase inhibitors (MAOIs), not lithium. Tyramine does not affect lithium levels.

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Naxlex Comprehensive Predictor Exams

A nurse who works in a psychiatric unit is caring for a client who has bipolar disorder. The client comes to the nurse's station at 0300 demanding that the nurse call the provider immediately. Which of the following responses by the nurse is appropriate?

Correct Answer is C

Explanation

A nurse is providing discharge teaching to a client who has bipolar disorder and will be discharged with a prescription for lithium. The nurse could teach the client which of the following factors puts her at risk for lithium toxicity?

Correct Answer is A

Explanation

A nurse is admitting an older adult client who has a suspected cognitive disorder. Which of the following inventories should be included as part of the admission assessment?

A nurse observes that a client who has depression is sitting alone in the room crying. As the nurse approaches, the client states, "I'm feeling really down and don't want to talk to anyone right now." Which of the following responses should the nurse make?

A nurse is caring for a hospitalized client who tells lies about other clients. The other clients on the unit frequently complain to the nursing staff about the client's disruptive behaviors. Which of the following initial actions should the nurse take?

A community health nurse is providing teaching to the family of a client who has dementia. Which of the following manifestations should the nurse tell the family to expect?

A nurse is providing discharge teaching for a client who has multiple medication prescriptions and must take the medications at specific intervals when at home. Which of the following instructions should the nurse include in the teaching?

A nurse is caring for a group of clients. The nurse should recognize which of the following clients is at risk for a vitamin B, deficiency.

A nurse in an acute care mental health facility is assessing a client who has bipolar disorder. Which of the following findings indicates the client is at risk for suicide?