Question

Difficulty: MediumPreventive Care and Screening

A 54-year-old man comes to the clinic to establish primary care. He has a 5-year history of type 2 diabetes mellitus, which is currently managed with metformin. He also has a 30-pack-year smoking history and continues to smoke 1 pack of cigarettes daily. The patient has not seen a physician or received any preventive care in the past 15 years. He feels well and reports no chest pain, shortness of breath, claudication, or changes in bowel habits. His blood pressure is 138/88 mm Hg, and his body mass index is 31 kg/m². Physical examination is unremarkable. Which of the following preventive interventions are currently indicated for this patient? (Select all that apply)

  1. Low-dose computed tomography of the chestAnswer
  2. 20-valent pneumococcal conjugate vaccineAnswer
  3. C
    Abdominal duplex ultrasonography
  4. D
    Prostate-specific antigen testing
  5. E
    Carotid duplex ultrasonography

Answer

The indicated interventions are low-dose computed tomography of the chest and the 20-valent pneumococcal conjugate vaccine.
The patient requires low-dose computed tomography (LDCT) of the chest and the 20-valent pneumococcal conjugate vaccine (PCV20). The USPSTF recommends annual lung cancer screening with LDCT for adults aged 50 to 80 years who have a 20 pack-year or greater smoking history and currently smoke or have quit within the past 15 years. This 54-year-old patient with a 30-pack-year history clearly meets these criteria. Additionally, the Advisory Committee on Immunization Practices (ACIP) recommends pneumococcal vaccination for adults aged 19 to 64 years who have underlying medical conditions such as diabetes mellitus or who are current cigarette smokers. This patient meets both of these high-risk criteria for early pneumococcal vaccination.

Step-by-Step Solution

1
Evaluate the patient's age and risk factors for cancer screening guidelines.
The patient is 54 years old with a 30-pack-year smoking history and currently smokes.
Age and smoking history dictate the need for lung cancer screening (LDCT starting at age 50 for >20 pack-years) and abdominal aortic aneurysm screening (US starting at age 65 for men who have ever smoked).
2
Evaluate the patient's comorbidities for immunization indications.
The patient has type 2 diabetes mellitus and is a current smoker.
Both diabetes and current smoking are independent indications for administering the pneumococcal vaccine in adults younger than 65 years.
3
Assess other screening modalities against current USPSTF recommendations.
PSA testing is not indicated before age 55, and carotid ultrasonography is not indicated for asymptomatic adults.
Applying evidence-based guidelines prevents overdiagnosis and unnecessary downstream invasive testing.

Key Concept

Application of age- and risk-factor-specific preventive screening and immunization guidelines.
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