National screening programmes in the UK are a cornerstone of public health, designed to identify apparently healthy individuals who may be at increased risk of a disease or condition. Since you're preparing for the UKMLA AKT, understanding the "Wilson-Jungner criteria" and the specific timelines for these screens is high-yield.

I'll break this down into the criteria used to decide on a screening programme and then the specific schedules for the key conditions.

1. The Wilson-Jungner Criteria

Before a screening programme is implemented, it must meet specific criteria. You'll often see these pop up in public health questions:

• The Condition: Should be an important health problem with a known natural history and a recognizable latent/early symptomatic stage.
• The Test: Must be simple, safe, validated, and acceptable to the population.
• The Treatment: There should be an effective treatment for patients identified, and a policy on who to treat.
• The Programme: The cost should be balanced against the benefit, and it should be an ongoing process.

2. Key Screening Schedules

Here is a summary of the most important screening programmes you'll need to know for the AKT.

Antenatal and Newborn Screening

• Infectious Diseases: HIV, Hepatitis B, and Syphilis (offered to all pregnant women).
• Sickle Cell and Thalassaemia: Offered to all pregnant women (usually by 10 weeks).
• Fetal Anomalies:
  • Combined test (11-14 weeks): Ultrasound (Nuchal Translucency) + Bloods (PAPP-A, hCG) for Trisomies 21, 18, and 13.
  • 20-week scan (18-21 weeks): Checks for structural abnormalities.
• Newborn Physical Exam (NIPE): Within 72 hours of birth (checks eyes, heart, hips, and testes).
• Newborn Hearing: Within 4-5 weeks.
• Newborn Blood Spot (Heel Prick): At 5 days. Screens for 9 conditions including Cystic Fibrosis, Sickle Cell, and Congenital Hypothyroidism.

Cancer Screening

I've summarized the cancer screening schedules in the table below for quick reference.

Other Adult Screening

• Abdominal Aortic Aneurysm (AAA): One-off ultrasound for men aged 65.
• Diabetic Eye Screening: Annual (or biennial if low risk) for people with diabetes aged 12 and over.

Let me pull up a clear comparison table of the cancer screening programmes for you, as these are frequently tested.