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Difficulty: MediumPreventive Care and Screening

An occupational health physician is evaluating a corporate executive who requires medical clearance prior to a long-term overseas deployment. The patient is a 50-year-old female whose past medical history is notable for essential hypertension, currently well-managed with daily amlodipine. Her body mass index is 31 kg/m². She reports a previous smoking habit of half a pack of cigarettes per day between the ages of 20 and 45, having ceased all tobacco use five years ago. A comprehensive review of her medical records reveals that she has not undergone any standardized preventive health screenings or diagnostic imaging in the past decade. Which of the following screening modalities are indicated for this patient prior to her departure? (Select all that apply)

  1. Screening mammographyAnswer
  2. Hemoglobin A1c measurementAnswer
  3. Fecal immunochemical testingAnswer
  4. D
    Low-dose computed tomography of the chest
  5. E
    Dual-energy x-ray absorptiometry

Answer

Screening mammography, Hemoglobin A1c measurement, and Fecal immunochemical testing
Based on current preventive health guidelines, a 50-year-old female with obesity requires screening for breast cancer (mammography), colorectal cancer (fecal immunochemical testing or colonoscopy), and type 2 diabetes (hemoglobin A1c or fasting glucose). Because her medical history shows a 10-year gap in care, all of these routine interventions are currently due.

Step-by-Step Solution

1
Evaluate the patient's age and sex-specific cancer screening requirements.
A 50-year-old female requires breast cancer screening (starting at age 40) and colorectal cancer screening (starting at age 45). Therefore, screening mammography and fecal immunochemical testing are indicated.
Guidelines target broad populations with rising incidences of breast and colon cancer in middle-aged adults.
2
Analyze the patient's metabolic risk factors.
The patient is 50 years old with a BMI of 31 kg/m² (obesity). This combination mandates screening for abnormal blood glucose.
The USPSTF recommends diabetes screening in adults aged 35 to 70 with overweight or obesity to prevent microvascular and macrovascular complications.
3
Calculate the patient's total pack-year smoking history to determine lung cancer screening eligibility.
0.5 packs per day multiplied by 25 years (age 20 to 45) equals 12.5 pack-years. Because this is less than 20 pack-years, lung cancer screening is not indicated.
Low-dose CT is only beneficial when the pre-test probability of lung cancer justifies the radiation and false-positive risks.
4
Assess the patient's risk for osteoporosis.
She is 50 years old without significant risk factors for early bone loss (she has high BMI, which is protective, rather than low body weight).
Routine DEXA scans are deferred until age 65 for women without clinical risk factors.

Key Concept

Appropriate application of age, metabolic, and behavioral risk-factor criteria for adult preventive health screenings.
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Topics

Preventive Care and Screening

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