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Difficulty: MediumPreventive Care and Screening

You are evaluating several patients in an outpatient primary care setting to update their preventive care plans. Based on current United States Preventive Services Task Force (USPSTF) guidelines, match each patient profile to the most appropriate evidence-based screening intervention that is newly indicated or essential for their specific clinical scenario.

  • A 29-year-old primigravida at 10 weeks of gestation who has no significant medical history and reports a monogamous relationship.Screening for asymptomatic bacteriuria using a urine culture
  • A 55-year-old construction worker with a 25-pack-year smoking history who continues to smoke half a pack of cigarettes daily.Annual screening with low-dose computed tomography of the chest
  • A 42-year-old accountant with a body mass index of 33 kg/m233 \text{ kg/m}^2 and a blood pressure of 134/86 mmHg134/86 \text{ mmHg} who is here for an annual checkup.Screening for abnormal blood glucose using a fasting plasma glucose or hemoglobin A1c test
  • A 67-year-old retired teacher who smoked a pack of cigarettes daily for four years in college but has maintained strict abstinence since age 22.One-time screening for an abdominal aortic aneurysm using ultrasonography

Answer

The correct matches align each patient with their highest-yield USPSTF-recommended screening based on age and risk factors: the pregnant patient with asymptomatic bacteriuria screening, the current heavy smoker with lung cancer screening, the obese middle-aged female with diabetes screening, and the older male 'ever smoker' with AAA screening.
Each patient profile maps to a distinct USPSTF Grade A or B recommendation. Pregnant patients require urine cultures for asymptomatic bacteriuria at their first prenatal visit. Adults aged 50-80 with a 20+ pack-year history require annual LDCT. Adults aged 35-70 who are overweight or obese require blood glucose screening. Men aged 65-75 who have 'ever smoked' (>100 cigarettes lifetime) require one-time AAA screening via ultrasound.

Step-by-Step Solution

1
Evaluate the pregnant patient (Left 1).
Identify that early pregnancy requires specific Grade A screenings, including checking for asymptomatic bacteriuria using a urine culture.
Untreated asymptomatic bacteriuria in pregnancy can rapidly progress to pyelonephritis.
2
Evaluate the 55-year-old current smoker (Left 2).
Identify that his age (50-80) and 25-pack-year history meet criteria for annual low-dose computed tomography.
LDCT is the only recommended screening modality for reducing lung cancer mortality in high-risk populations.
3
Evaluate the 42-year-old female with obesity (Left 3).
Identify that her age (35-70) and BMI (>25 kg/m2\text{kg/m}^2) meet criteria for diabetes and prediabetes screening.
Early detection of abnormal blood glucose allows for lifestyle interventions to prevent long-term cardiovascular and microvascular complications.
4
Evaluate the 67-year-old male former smoker (Left 4).
Identify that his age (65-75), biological sex (male), and history of smoking >100 cigarettes meet criteria for one-time abdominal aortic aneurysm screening.
AAA screening is indicated for any male who has 'ever smoked', defined as at least 100 cigarettes over their lifetime, regardless of when they quit.

Key Concept

Application of age-, sex-, and risk-specific USPSTF guidelines for preventive screening in the ambulatory setting.
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Topics

Preventive Care and Screening

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