NAPLEX NABP North American Pharmacist Licensure Examination Free Practice Exam Questions (2025 Updated)

Tachyphylaxis is the phenomenon where a patient experiences a rapid form of drug tolerance. Nitrates exhibit this property. It means that the patient becomes tolerance very quickly and so repeat doses become more and more ineffective. To overcome the problem of tachyphyaxis, then, sufficient time must elapse between doses.

In older adults, selection of antidepressant medication should be done with various considerations in mind, most notably side effects and risk of drug-drug interactions. The tricyclic antidepressants (TCAs), as discussed on QUESTION NO: 50, have various side effects including cardiac conduction abnormalities and drug-drug interactions that make them undesirable for the treatment of depression in older adults. A selective serotonin reuptake inhibitor is more favorable than a TCA in this patient. Fluvoxamine has a high risk for drug-drug interactions, whereas escitalopram does not. Fluvoxamine also has high protein binding, and can therefore interact with anticoagulant medications, such a warfarin. Therefore, of the medications listed, escitalopram is the most appropriate in this patient. In older adults, psychotropic medications should be started at a low dose and titrated up slowly to the lowest effective dose.

Agents that can cause elevated triglycerides: oral estrogens, glucocorticoids, bile acid sequestrants, protease inhibitors, retinoic acid, anabolic steroids, sirolimus, raloxifene, tamoxifen, beta blockers (not carvedilol), and thiazides.

Add salmeterol to the current regimen. This patient had mild persistent asthma but was using his albuterol daily, which indicates that a step up in therapy is warranted. The preferred first line treatment regimen for moderate persistent asthma are low to medium dose inhaled corticosteroids plus a long acting beta2 agonist, as well as a short acting beta2 agonist as needed. A is incorrect. Ciclesonide is an inhaled corticosteroid. The patient in the case is already using fluticasone, so adding ciclesonide would be therapeutic duplication. C is incorrect. Long-acting beta2 agonists should only be used as adjunctive therapy in patients who are currently receiving but not adequately controlled on an inhaled corticosteroid. These medications should not be used as monotherapy, due to an increased risk of asthma related deaths. D is incorrect. Cromolyn prevents the release of vasoactive mediators from mast cell and is primarily used for exercise-induced asthma, it is not indicated as an alternative agent in patients with moderate persistent asthma. E is incorrect. Ipratropium is a short-acting anticholinergic, which is often used in COPD or in asthma exacerbations. It is not indicated for maintenance treatment of moderate persistent asthma.

Ceftaroline covers MRSA, but it does not cover pseudomonas. Ertapenem does not cover pseudomonas. Cefazolin does not cover MRSA nor Pseudomonas. Cefepime has pseudomonas coverage. Vancomycin does not cover gram negative bacteria.