NABP North American Pharmacist Licensure Examination NAPLEX Exam Questions
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Which of the following representsthe major route of metabolism for acetaminophen?
Correct Answer: A
Acetaminophen is metabolized by choices A through D. The major route is glucuronidation catalyzed by UDP- glucuronyl transferase in the liver. Sulfation is the next most common route and is the target mechanism for NAC therapy. Oxidation by cytochrome P-450 results in the formation of N-acetyl-pbenzoquinone imine, which is responsible for the hepatic necrosis caused by acetaminophen overdose. Direct renal excretion represents approximately 5% of the metabolism of acetaminophen. Plasma metabolism of acetaminophen does not generally occur.
A 15-year-old presents with 6 days of nasal congestion with thin, clear rhinorrhe
a. She notes mild facial pain but has had no fevers.
She feels her symptoms are improving. What is the most likely cause of her symptoms?
Correct Answer: B
This patient shows symptoms of acute sinusitis. The most common etiology of which is viruses. Indications that an infection is viral as opposed to bacterial included a shorter infection tie (less than 10 days) and no purulent discharge (hers is watery). She does not show any evidence of a complication developing and even notes that her symptoms are improving. If her symptoms were attributed to a bacterium, then the most common cause of acute sinusitis is Streptococcus pneumoniae followed by Haemophilus influenza, then Moraxella catarrhalis. Anaerobic species such as Bacteroides fragilis and Staphylococcus aureus are more commonly found in patients with chronic sinusitis (sinusitis lasting longer than 12 weeks). This is important to realize before indiscriminately providing antibiotics for these patients.
A 72-year-old woman suffers from a major depressive episode. She has a history of coronary artery disease, atrial fibrillation on anticoagulation therapy, sick sinus syndrome, glaucoma, and chronic obstructive pulmonary disease.
Which of the following medications is most appropriate for the treatment of her depression?
Correct Answer: E
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
Correct Answer: C
Pyridoxine is combined with doxylamine to treat morning sickness in pregnant women.
JK is a 67 years old African American man who presents to your clinic for his blood pressure management. His past medical history includes Peptic ulcer disease and hypertension. His two BP readings are 160/98, 159/96 and HR 85. He says he has been adherent to his medication and lifestyle. He currently takes 12.5mg Chlorthalidone and Prilosec 20mg daily.
Which of the following is the best strategy to manage his blood pressure?
Correct Answer: B
As the patient is over the age of 60 and he does not have CKD or diabetes, his goal BP should be SBP < 150 mmHg or DBP < 90 mmHg, and he is not currently at this goal with his medication regimen. Options are to maximize the current medication dosage (option A), or to add a second agent. Since calcium channel blockers like Norvasc are recommended as initial treatment options in African Americans, choosing Norvasc over lisinopril would probably be the more effective option.
http://jamanetwork.com/journals/jama/fullarticle/1791497