Wait at least nine days after unprotected sex to take a pregnancy test. The best time to take a pregnancy test is the first day after a missed period. You should wait 21 days after unprotected sex if ...

A 45-year-old male presents with epigastric pain on an empty stomach (worsening 2-3 hours after meals and at night, improving with food). No history of NSAID use. H. pylori urea breath test (+).

An IgE blood test measures antibodies to help diagnose allergies. High levels of IgE antibodies can mean you have an allergy to something. Your healthcare provide may do additional testing to ...

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