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Difficulty: HardPreventive Care and Screening

A 55-year-old man presents to the clinic for a routine health maintenance examination. He has not seen a physician in seven years. He feels well and has no acute complaints. His only past medical history is a surgical meniscus repair in his twenties. He takes no daily medications. He is a current smoker with a 35-pack-year smoking history, and he drinks 1 to 2 beers on weekends. His body mass index is 23 kg/m². His last health care visit was at age 48, during which he underwent a screening colonoscopy that was normal. At that time, a comprehensive metabolic panel, fasting lipid panel, and HIV screening were also unremarkable. He received a Tdap booster and an influenza vaccine at a local pharmacy last month, but he has not received any other adult immunizations. Which of the following preventive interventions are indicated for this patient at today's visit? (Select all that apply)

  1. Low-dose computed tomography (LDCT) of the chestAnswer
  2. Recombinant zoster vaccineAnswer
  3. 20-valent pneumococcal conjugate vaccine (PCV20)Answer
  4. D
    Screening colonoscopy
  5. E
    Ultrasonography of the abdominal aorta

Answer

The indicated interventions for this patient are low-dose computed tomography (LDCT) of the chest, the recombinant zoster vaccine, and the 20-valent pneumococcal conjugate vaccine (PCV20).
The correct interventions for this 55-year-old current smoker are low-dose computed tomography (LDCT) of the chest, the recombinant zoster vaccine, and the 20-valent pneumococcal conjugate vaccine (PCV20). According to current USPSTF guidelines, annual LDCT is indicated for adults aged 50 to 80 years with at least a 20 pack-year smoking history who currently smoke or have quit within the past 15 years. According to ACIP guidelines, the recombinant zoster vaccine is routinely recommended for all adults aged 50 years and older to prevent herpes zoster. Furthermore, while routine pneumococcal vaccination is initiated at age 65 for healthy adults, the ACIP recommends PCV20 (or PCV15 followed by PPSV23) for adults aged 19 to 64 years who have specific risk factors, which explicitly includes current cigarette smoking. Therefore, all three of these interventions are indicated at today's visit.

Step-by-Step Solution

1
Evaluate the patient's age (55 years) and smoking status (current, 35 pack-years) against cancer screening guidelines.
The patient meets criteria for lung cancer screening with LDCT (age 50-80, >=20 pack-years). He does not meet criteria for abdominal aortic aneurysm screening (requires age 65-75).
Accurate application of USPSTF age and risk-factor cutoffs is required to prevent underuse and overuse of screening tests.
2
Assess the patient's prior colonoscopy history.
The patient had a normal colonoscopy at age 48. The standard interval is 10 years, meaning his next screening is due at age 58.
Shortening screening intervals without a clinical indication (e.g., adenomatous polyps, family history) exposes the patient to unnecessary procedural risks.
3
Review the patient's immunization needs based on age and comorbid risk factors.
At age 55, he requires the recombinant zoster vaccine (indicated for all adults >= 50). Furthermore, because he is a current smoker, he meets the high-risk criteria for the pneumococcal vaccine (PCV20) prior to age 65.
Adult immunization schedules utilize both age-based universally recommended vaccines and risk-based targeted vaccines.

Key Concept

Age-appropriate and risk-factor-modified preventive care in the ambulatory setting, specifically applying USPSTF and ACIP guidelines for a middle-aged adult who smokes.
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Topics

Preventive Care and Screening

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