Phenytoin has a narrow therapeutic index. The nurse recognizes that this characteristic indicates which of these?

The phenytoin has a low chance of being effective.

There is no difference between safe and toxic plasma levels.

Avery small dosage can result in the desired therapeutic effect.

The safe and the toxic plasma levels of the drug are very close to each other.

Answer and Explanation

The Correct Answer is D

D. Therapeutic index refers to the doses that results in desired outcome with adverse effects. It is between the safe and toxic levels. Narrow therapeutic level means the two are very close.
A. How effective a drug is termed as efficacy
B. Such a drug does not exist as it is not safe
C. Effectiveness of very small dose is termed as potency

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Free Nursing Study Resources

Correct Answer is ["A","C","D"]

Explanation

GI, Hair follicles and bone marrow cells are rapidly dividing which are commonly affected by chemotherapeutic agents and other drugs that inhibit or alters DNA synthesis.

Nerve myelin and retinal cells are not rapidly dividing.

A. Minimize the use of verbal and telephone orders. B. Always following the rights of medication administration. C. use two client identifiers before giving medications. D. Use trade names instead of generic names to avoid confusion. E. Assess for allergies after giving medications.

Correct Answer is ["B","C"]

Explanation

following the rights of medications administration prevents errors, the rights include right client, right dosage, right drug, right route and right time and frequency. The nurse must always verify the administration order to the prescription before drug administration. Wherever there is doubt, the provider should be consulted to avoid errors.

A- Minimizing telephone and verbal orders is not a proven principle of preventing medication errors

D- Use of trade names increases risk of errors

E-Allergy assessment is not related to medication errors

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Phenytoin has a narrow therapeutic index. The nurse recognizes that this characteristic indicates which of these?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

When giving chemotherapy as cancer treatment, the nurse recognizes that toxicity to rapidly growing normal cells also occurs. Which rapidly growing normal cells are also harmed by chemotherapy? (Select all that apply.)

Correct Answer is ["A","C","D"]

Explanation

The nurse can prevent medication errors by following which principles? (Select all that apply.)

Correct Answer is ["B","C"]

Explanation

When monitoring a client who is taking a cholinergic drug, the nurse will watch for which cardiovascular effect?

Which problem may occur in a client who has started aminoglycoside therapy?

A nurse is caring for four clients. After administering morning medications, she realizes that the nifedipine prescribed for one client was inadvertently administered to another client. Which of the following actions should the nurse take first?

The nurse is caring for a client experiencing sympathetic nervous system stimulation. What assessment finding supports this diagnosis? Select all that apply.

A sanitation worker has experienced a needle stick by a contaminated needle that was placed in a trash can. The employee health nurse expects that which drug will be used to provide passive immunity to hepatitis B infection?

When evaluating a client's use of a metered-dose inhaler (MDI), the nurse notes that the client is unable to coordinate the activation of the inhaler with her breathing. What intervention is most appropriate at this time?

A client who has received chemotherapy has a critically low platelet count. The nurse expects which drug or drug class to be used to stimulate platelet cell production?