Nursing Elites

1. 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.

2. The nurse who was not promoted then went to the utility room and slammed several cupboard doors while looking for Kleenex. This behavior exemplifies:

• A. displacement.
• B. sublimation
• C. conversion.
• D. reaction formation.

Correct answer: A.

Rationale: Displacement unconsciously transfers emotions associated with a person, object, or situation to another less threatening person, object, or situation. In this scenario, the nurse slammed doors instead of expressing anger towards the promoted nurse or the administrator who made the promotion decision. Sublimation is the unconscious process of substituting constructive activity for unacceptable impulses. Since slamming cupboard doors is not a constructive activity, this choice is incorrect. Conversion involves transforming anxiety into physical symptoms, which is not demonstrated in the given behavior. Reaction formation keeps unacceptable feelings or behaviors out of awareness by displaying the opposite feeling or behavior, which is not the case here.

3. While admitting a client to an acute-care psychiatric unit, the nurse asks about substance abuse based on:

• A. psychiatric disorders' higher prevalence in addicted populations
• B. individuals with psychiatric disorders' increased susceptibility to substance abuse
• C. the importance of detecting and diagnosing substance disorders in acute-care psychiatric settings
• D. the significant impact of undetected substance problems on the treatment of psychiatric disorders

Correct answer: B

Rationale: The correct answer is 'individuals with psychiatric disorders' increased susceptibility to substance abuse.' It is crucial to inquire about substance abuse during admission to an acute-care psychiatric unit because individuals with psychiatric disorders are more prone to experiencing substance abuse issues. Addressing substance abuse is vital for effective treatment and to prevent relapse in psychiatric disorders. Option A is incorrect as it focuses on the prevalence of psychiatric illness in addicted populations rather than the relationship between psychiatric disorders and substance abuse. Option C is incorrect as it exaggerates the ease of detecting and diagnosing substance disorders in acute-care psychiatric settings. Option D is incorrect as undetected substance problems can indeed significantly impact the treatment of psychiatric disorders, but the main reason for inquiring about substance abuse is the increased susceptibility of individuals with psychiatric disorders to such issues.

4. The chemotherapeutic DNA alkylating agents such as nitrogen mustards are effective because they:

• A. cross-link DNA strands with covalent bonds between alkyl groups on the drug and guanine bases on DNA.
• B. have few, if any, side effects.
• C. are used to treat multiple types of cancer.
• D. are cell-cycle-specific agents.

Correct answer: A

Rationale: Alkylating agents, such as nitrogen mustards, are effective chemotherapeutic agents because they cross-link DNA strands with covalent bonds between alkyl groups on the drug and guanine bases on DNA. This cross-linking interferes with DNA replication and transcription, leading to cell death. Choice B is incorrect because alkylating agents have numerous side effects, including alopecia, nausea, vomiting, and myelosuppression. Choice C is incorrect because while nitrogen mustards are used to treat multiple types of cancer like chronic lymphocytic leukemia, non-Hodgkin's lymphoma, and breast and ovarian cancer, their effectiveness is primarily due to DNA cross-linkage. Choice D is incorrect because alkylating agents are non-cell-cycle-specific agents, meaning they can act on cells in any phase of the cell cycle, not just on cells that are actively dividing.

5. The client is receiving heparin for thrombophlebitis of the left lower extremity. Which of the following drugs reverses the effects of heparin?

• A. Cyanocobalamin
• B. Protamine sulfate
• C. Streptokinase
• D. Sodium warfarin

Correct answer: B

Rationale: The correct answer is Protamine sulfate. Protamine sulfate is the antidote for heparin, as it reverses its effects. Cyanocobalamin is a form of Vitamin B12 and is not used to reverse heparin effects. Streptokinase is a thrombolytic agent that is used to dissolve blood clots, not to reverse heparin effects. Sodium warfarin is an anticoagulant, but it is not the antidote for heparin. Therefore, answers A, C, and D are incorrect as they do not reverse the effects of heparin.

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