A patient is being treated for ethanol alcohol abuse in a rehabilitation center. The nurse will include which information when teaching him about disulfiram (Antabuse) therapy?

Correct Answer: B

Rationale: The correct answer is B. When teaching a patient about disulfiram therapy, it is important to inform them about the common over-the-counter substances that contain alcohol, as consuming these can lead to a disulfiram-alcohol reaction. This reaction includes symptoms such as flushing, nausea, vomiting, and palpitations, which can be severe and potentially life-threatening. Therefore, the patient must avoid all sources of alcohol, including certain medications, mouthwashes, and even some foods. Choices A, C, and D are incorrect because smoking cigarettes, experiencing similar effects as alcohol without euphoria, and assuming small amounts of alcohol are safe can all lead to serious consequences while on disulfiram therapy.

Correct Answer: D

Rationale: The correct answer is D because inhaled corticosteroids can lead to oral candidiasis (thrush) due to local immunosuppression and dry mouth. This is because corticosteroids can disrupt the oral mucosa's normal flora and reduce salivary flow. Fatigue and depression (A), anxiety and palpitations (B), and headache and rapid heart rate (C) are not typically associated with inhaled corticosteroid use.

Correct Answer: B

Rationale: Rationale: B is correct because lipophilic substances have high affinity for fats and are able to penetrate barriers easily. However, a small volume of distribution indicates that these substances are mainly confined to the plasma and do not distribute widely into interstitial and cell fluids. Summary: A is incorrect because a small volume of distribution indicates limited distribution, not widespread distribution as stated. C is incorrect as there is a correct answer. D is incorrect as not all choices are correct, only B is accurate based on the characteristics of lipophilic substances.

Correct Answer: C

Rationale: Rationale: 1. When two drugs with the same effect are taken together, and their effects sum up equally, it indicates an additive effect. 2. Additive effect means the combined effect is simply the sum of individual effects. 3. Antagonism is when the effect of one drug reduces or cancels out the effect of another. 4. Potentiation is when one drug enhances the effect of another, not equal sum. 5. None of the above is incorrect as the scenario described fits the definition of an additive effect.

Correct Answer: C

Rationale: The correct answer is C: Procaine does not readily penetrate the skin and mucosa. This is because procaine is a local anesthetic with poor lipid solubility, making it less able to penetrate through skin and mucosa efficiently. The other choices are incorrect because: A is correct as procaine contains an ester linkage; B is correct as procaine's metabolic product para-aminobenzoic acid can inhibit sulfonamide action; and D is correct as procaine is relatively short-acting compared to other local anesthetics like lidocaine. Therefore, C is the correct answer as it does not align with the properties of procaine.