Nursing Elites

1. Lidocaine is a medication frequently ordered for the client experiencing

• A. Atrial tachycardia
• B. Ventricular tachycardia
• C. Heart block
• D. Ventricular bradycardia

Correct answer: B

Rationale: Lidocaine is used to treat ventricular tachycardia. This medication slowly exerts an antiarrhythmic effect by increasing the electrical stimulation threshold of the ventricles without depressing the force of ventricular contractions. It is not used for atrial arrhythmias; thus, answer A is incorrect. Answers C and D are incorrect because lidocaine does not slow the heart rate, so it is not used for heart block or bradycardia.

2. Which information obtained from the mother of a child with cerebral palsy most likely correlates to the diagnosis?

• A. She was born at 42 weeks gestation.
• B. She had meningitis when she was 6 months old.
• C. She had physiologic jaundice after delivery.
• D. She has frequent sore throats.

Correct answer: B

Rationale: The diagnosis of meningitis at age 6 months correlates to a diagnosis of cerebral palsy. Cerebral palsy, a neurological disorder, is often associated with birth trauma or infections of the brain or spinal column. Answers A, C, and D are not related to the question. Gestational length (choice A) is not a direct risk factor for cerebral palsy. Physiologic jaundice (choice C) and frequent sore throats (choice D) are not typically associated with cerebral palsy.

3. A nurse is teaching the mother of an 11-month-old infant how to clean the infant's teeth. The nurse tells the mother to take which action?

• A. Use a small amount of toothpaste and a soft-bristle toothbrush
• B. Use water and a cotton swab and rub the teeth
• C. Use diluted fluoride and rub the teeth with a soft washcloth
• D. Dip the infant's pacifier in maple syrup so that the infant will suck

Correct answer: C

Rationale: The correct action when cleaning an infant's teeth is to use water and a cotton swab to gently rub the teeth. This method helps in removing any food particles or plaque buildup without the risks associated with toothpaste ingestion. Using a small amount of toothpaste and a soft-bristle toothbrush is not recommended for infants as they may swallow the toothpaste, leading to potential fluoride ingestion issues. Using diluted fluoride and rubbing the teeth with a soft washcloth is unnecessary at this age since infants typically receive fluoride through other sources like formula. Dipping the infant's pacifier in maple syrup is highly inappropriate and poses a significant risk of tooth decay due to the high sugar content, which can harm the infant's teeth.

4. Social support systems include all of the following except:

• A. call-in help lines
• B. emotional assistance provided by others
• C. community support groups
• D. use of coping skills and verbalization for anger management

Correct answer: D

Rationale: Social support systems involve external sources of support like call-in help lines, emotional assistance from others, and community support groups. These external resources provide individuals with assistance and comfort. Coping skills and verbalization for anger management are personal strategies that individuals use to manage emotions internally. While these skills can be beneficial, they are not considered part of external social support systems.

5. Narrow therapeutic index medications:

• A. are drug formulations with limited pharmacokinetic variability.
• B. have limited value and require no monitoring of blood levels.
• C. have less than a twofold difference in minimum toxic levels and minimum effective concentration in the blood
• D. have limited potency and side effects.

Correct answer: C

Rationale: The therapeutic index is the ratio between the median lethal dose and median effective dose of a drug, indicating the safety margin. Narrow therapeutic index medications have a small difference between minimum toxic levels and minimum effective concentration in the blood, making them high-risk drugs that require close monitoring to avoid toxicity. Choice A is incorrect because pharmacokinetics refer to drug absorption, distribution, metabolism, and elimination, not the therapeutic index. Choice B is incorrect because narrow therapeutic index drugs necessitate monitoring due to their narrow margin of safety. Choice D is incorrect because narrow therapeutic index drugs do not necessarily have limited potency but are characterized by a small window between efficacy and toxicity.

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