Question

Difficulty: MediumPreventive Care and Screening

Review the following patient profiles from an outpatient primary care clinic. Match each patient with the most critical, guideline-concordant preventive care intervention required during their visit today.

  • 29-year-old gravid patient at 28 weeks gestation; BMI 22 kg/m²; received a tetanus-diphtheria toxoid booster 2 years ago for a minor wound.Administer Tdap vaccine today to maximize maternal antibody transfer.
  • 71-year-old man; BMI 24 kg/m²; former smoker with a 40 pack-year history who quit 8 years ago; no current pulmonary symptoms.Order annual low-dose computed tomography to screen for pulmonary malignancy.
  • 38-year-old man; BMI 33 kg/m²; never-smoker; blood pressure 118/76 mmHg; reports feeling completely well.Screen for abnormal glucose metabolism using hemoglobin A1c or fasting glucose.
  • 22-year-old woman; BMI 21 kg/m²; sexually active with a new partner; relies on oral contraceptives; completely asymptomatic.Perform routine nucleic acid amplification testing for Chlamydia and Gonorrhea.

Answer

The gravid patient matches with Tdap administration. The older former smoker matches with LDCT screening. The middle-aged man with obesity matches with diabetes screening. The young sexually active woman matches with STI screening.
Each match correctly identifies the single most appropriate, guideline-driven intervention for that demographic. The pregnant patient requires Tdap for fetal pertussis immunity. The 71-year-old former smoker remains within the 15-year cessation window for LDCT lung cancer screening. The 38-year-old man requires diabetes screening due to his age and BMI of 33 kg/m². The 22-year-old woman requires routine STI screening based purely on her age and sexual activity status.

Step-by-Step Solution

1
Evaluate the pregnant patient's immunization needs.
Identify that Tdap is required during the 27-36 week window of every pregnancy.
Maternal Tdap vaccination maximizes the passive transfer of pertussis antibodies to the fetus, regardless of prior tetanus boosters.
2
Assess the 71-year-old man's cancer screening eligibility.
Determine he requires a low-dose computed tomography (LDCT) scan.
He meets the criteria of being aged 50-80, having at least a 20 pack-year smoking history, and having quit within the last 15 years.
3
Assess the 38-year-old man's metabolic risk factors.
Identify the need for glycemic screening (HbA1c or fasting glucose).
Current guidelines recommend diabetes screening for asymptomatic adults aged 35-70 who have overweight or obesity (BMI > 25 kg/m²).
4
Evaluate the 22-year-old woman's infectious disease screening needs.
Determine she requires nucleic acid amplification testing for Chlamydia and Gonorrhea.
Annual screening is indicated for all sexually active women aged 24 or younger, even if asymptomatic or using barrier-free contraception.

Key Concept

Applying evidence-based preventive care and screening guidelines across diverse patient demographics and risk factors.
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