CSP - Certified Specialty Pharmacist Patient Adherence and Outcomes Questions and Answers

Question 1

When measuring medication adherence using pharmacy claims data, which metric is generally preferred by quality organizations like the Pharmacy Quality Alliance (PQA) because it avoids overestimating adherence in patients who refill prescriptions early?

Accepted Answer

Proportion of Days Covered (PDC)

Answer

Proportion of Days Covered (PDC) is often preferred over Medication Possession Ratio (MPR) because it caps the daily value at 1, preventing the numerator (days covered) from exceeding the denominator (days in the period) and thus avoiding an overestimation of adherence. Quality organizations like PQA and the National Committee for Quality Assurance (NCQA) use PDC for their performance measures.

Question 2

A patient with Crohn's disease on a self-injectable biologic frequently misses doses. During a follow-up call, the patient states, "I just get so anxious about giving myself the shot, and it stings. I keep putting it off." This represents which type of adherence barrier?

Accepted Answer

Therapy-related barrier

Answer

The patient's non-adherence is directly linked to the characteristics of the therapy itself—the pain and anxiety associated with the self-injection process. This falls under the category of therapy-related barriers, which also includes side effects and regimen complexity.

Question 3

A specialty pharmacist is counseling a patient who expresses ambivalence about starting a new oral medication for multiple sclerosis due to a fear of potential side effects. Which of the following statements best exemplifies the use of Motivational Interviewing (MI)?

Accepted Answer

"It sounds like you're concerned about how the side effects might impact your daily life, but you're also hopeful this could prevent a relapse. Could we talk more about that balance?"

Answer

This statement uses a key MI technique called a "double-sided reflection." It acknowledges and validates the patient's concerns (the "con" of taking the medication) while also reflecting their potential motivation for taking it (the "pro"), encouraging them to explore their own ambivalence without judgment or confrontation.

Question 4

A specialty pharmacy aims to enhance its adherence program for patients taking oral medications for pulmonary arterial hypertension. Which of the following technology-based interventions is most likely to improve patient outcomes?

Accepted Answer

Implementing a mobile application with personalized dose reminders, educational content, and a feature for tracking side effects.

Answer

Interactive, patient-centered technology like a comprehensive mobile app is most effective. It actively engages the patient with personalized reminders, provides easily accessible information, and allows for self-monitoring, which can improve both adherence and self-management skills, leading to better outcomes. Passive or burdensome interventions are less effective.

Question 5

A patient being treated with a direct-acting antiviral (DAA) for Hepatitis C has a Proportion of Days Covered (PDC) of 70% during their 12-week treatment course. This level of adherence is most strongly associated with which of the following outcomes?

Accepted Answer

A significantly increased risk of virologic failure.

Answer

Achieving a sustained virologic response (SVR), or a cure, with DAA therapy is highly dependent on near-perfect adherence. A PDC of 70% constitutes significant non-adherence and dramatically increases the risk of treatment failure, where the virus is not eradicated from the body. While resistance is a concern, the most direct and likely outcome is failing to achieve a cure.

CSP - Certified Specialty Pharmacist Practice Test

CSP - Certified Specialty Pharmacist Practice Test

CSP - Certified Specialty Pharmacist Patient Adherence and Outcomes Questions and Answers