True or false: A routine PT/INR test measures the antiplatelet effect of aspirin or clopidogrel.
5 Antiplatelet Drugs Online Quiz Questions
Use this free practice quiz with 20 questions to review 5 Antiplatelet Drugs, test your knowledge, and prepare for your next test or exam.
A patient taking ticagrelor reports a new symptom that is a commonly associated adverse effect. What symptom should the patient report?
A patient taking an antiplatelet drug is reviewing which symptoms to report promptly. Select all that apply.
- A
Unusual or prolonged bleeding
- B
Black or bloody stools
- C
Blood in the urine
- D
Extensive unexplained bruising
- E
Mild thirst after exercise
Which prior neurologic history is a contraindication to prasugrel?
A patient taking aspirin asks what important adverse effects or precautions to keep in mind. Select all correct statements.
- A
Dyspepsia or peptic ulcers
- B
Gastrointestinal or other bleeding
- C
Aspirin-sensitive asthma never needs clinical review
- D
Aspirin prevents all bleeding caused by other medicines
- E
Nonprescription NSAIDs may increase bleeding risk
True or false: Long-term dual antiplatelet therapy is routine for all patients who have had an ischemic stroke.
- A
True
- B
False
A patient with acute coronary syndrome has received a coronary stent. Why might the treatment plan include aspirin plus a P2Y₁₂ inhibitor?
- A
It dissolves the stent after implantation.
- B
It reduces recurrent ischemic events and stent-related thrombosis.
- C
It eliminates all bleeding risk from antiplatelet treatment.
- D
It is used to treat atrial fibrillation by dissolving existing clots.
A patient taking clopidogrel is prescribed omeprazole. Explain the potential interaction and what the patient should do about the combination.
For a patient with acute coronary syndrome whose bleeding risk is not high, what is the default duration of dual antiplatelet therapy described in the material?
- A
At least 12 months when bleeding risk is not high, with individualized alternatives possible
- B
Seven days for every patient, regardless of clinical situation
- C
Only until hospital discharge for every patient
- D
Lifelong treatment for every patient, regardless of bleeding risk
A clinician is reviewing whether ticagrelor is appropriate for a patient. Which history is a contraindication to ticagrelor?
- A
A history of seasonal allergies
- B
A history of uncomplicated indigestion
- C
A history of intracranial hemorrhage
- D
A history of a healed ankle sprain
What syndrome is a concern when aspirin is given to a child or teenager with a viral infection?
Which condition is a contraindication to ticagrelor?
- A
A history of seasonal allergies
- B
Active pathological bleeding
- C
Mild dyspepsia after a meal
- D
A remote history of uncomplicated headache
Which effect results when aspirin irreversibly inhibits platelet COX-1?
- A
Reduced thromboxane A₂ formation
- B
Blocked CYP2C19 activation of clopidogrel
- C
Direct inhibition of the ADP receptor
- D
Increased platelet aggregation
Patients taking an antiplatelet drug should promptly report black stools.
- A
True
- B
False
A patient taking an antiplatelet drug notices black stools. What should the patient do?
- A
Wait until the next routine appointment to mention it
- B
Stop the antiplatelet drug without consulting anyone
- C
Promptly report the black stools to a clinician
- D
Take an additional dose of the antiplatelet drug
Which platelet enzyme does aspirin irreversibly inhibit? Enter the enzyme name.
A patient taking clopidogrel is prescribed omeprazole. What interaction concern should the patient ask the prescriber or pharmacist to review?
- A
It increases clopidogrel's active metabolite and causes excessive platelet inhibition.
- B
It can reduce formation of clopidogrel's active metabolite and lessen its antiplatelet effect.
- C
It makes clopidogrel directly inhibit COX-1.
- D
It causes clopidogrel to act as an anticoagulant.
A patient asks whether the same antiplatelet approach is routinely used to prevent recurrence after every stroke. Which response is most accurate?
- A
Antiplatelet therapy is routine after every type of stroke, including atrial fibrillation-related stroke.
- B
Long-term dual antiplatelet therapy is routine for all stroke survivors.
- C
Antiplatelet therapy is commonly used after noncardioembolic ischemic stroke, while atrial fibrillation-related stroke often calls for a different prevention strategy.
- D
Antiplatelet therapy is used only after hemorrhagic stroke.
When a clinician individualizes an antiplatelet treatment plan, the patient's risk and risk are among the considerations.
A prescribed antiplatelet blocks the platelet receptor for ADP. It belongs to the inhibitor class, and the receptor's signaling molecule is .
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