Following on from our post last week on what to expect during a physical examination, today’s blog will explain some of the laboratory and screening tests you may also undergo. Now it’s important to note that there are no standard laboratory or screening tests during a physical exam, so what you are advised to have will depend on your physician and health history. Laboratory tests during a physical exam The main laboratory tests you are likely to undergo during a physical exam are: – Complete blood count (CBC) – A CBC is a blood test that helps evaluate your overall health and detect a wide range of conditions, including anemia, infection and leukemia. – Chemistry panel – A comprehensive metabolic panel (CMP) will include an electrolyte panel (which measures levels of sodium, chloride, potassium and bicarbonate), kidney function tests, liver function tests and also measures glucose and calcium. – Blood glucose – To look for signs of diabetes or pre-diabetes. – Urinalysis – Using a sample of your urine, this test can detect a range of conditions, including urinary tract infections, kidney disease and diabetes. – Fecalysis – A stool sample test (fecalysis) can detect certain conditions affecting your digestive tract, including parasites, viruses, bacteria, poor nutrient absorption and even cancer. Screening tests during a physical exam In addition to the laboratory tests outlined above, you may also undergo the following screening tests: For women: – Mammogram – A screening test for breast cancer, usually recommended for women 40 and over – Pap smear – A screening test for cervical cancer, usually recommended for women 21 and older For men: – Prostate exam – A digital rectal exam is the most common method used for physically checking your prostate, while a PSA test measures the level of prostate-specific antigen in your blood – both of which can flag early signs of prostate cancer. – Testicular exam – A physical exam that checks both testicles for signs of abnormality, including lumps, changes in size, and tenderness. – Abdominal Aortic Aneurysm (AAA) screening – This simple ultrasound looks for a bulge or swelling in the aorta, and is usually recommended for men 65 and over, as they are most at risk. Both men and women: – Cholesterol test – Also called a ‘lipid panel’, this checks your cholesterol levels to see if you are at risk of heart attack or stroke. – Osteoporosis - A bone density scan can help reveal potential issues relating to weak bones. – Hepatitis – Everyone should be tested for hepatitis C at least once to find out if they have ever been infected with the virus. – Colorectal – A colonoscopy is usually used to check for colorectal cancer and other abnormalities in your colon. If you are a smoker, or have a family history of certain conditions, your physician may also recommend further tests in addition to those above. * Image by Ernesto Eslava from Pixabay
Some species of bacteria are stripping off their outer layers in an attempt to evade antibiotics and survive. It’s a reality that could explain why some infections keep coming back. According to researchers at Newcastle University in the UK, the bacteria are “undressing” and removing their cell walls – the very part of them that some antibiotics target. The cell walls of some bacteria are made from sugars and amino acids. While they give the bacteria shape and protection, these walls provide a weak spot that can be exploited by antibiotics. Penicillin, the first antibiotic to be discovered and the most widely used in the world, works by disrupting the cell wall and causing the bacteria to burst. The study, which is published in the journal Nature Communications, found that bacteria associated with recurring urinary tract infections in elderly patients slipped out of their cell walls to avoid the effect of the antibiotics. It’s the first time that research has shown bacteria using this method to survive antibiotic treatment and while not all survive – most get taken care of by the body’s immune system - it does offer some explanation as to why certain infections come back again and again. The discovery could pave the way for new treatments to be developed, including combination therapies that target both the bacteria’s cell wall and inner workings.
Cranberry juice has long been used by people to provide relief from and even treat urine infections. But new draft guidelines from the National Institute for Health and Care Excellence (NICE) say there is not enough good evidence, despite people’s experiences, to recommend it as a treatment. Even though some studies have concluded that cranberry juice may be beneficial for people with urine infections, NICE says people should drink plenty of water or fluids and take painkillers instead. Urinary tract infections (UTIs) are caused by bacteria, which is why some people may be prescribed antibiotics to treat them, but these drugs are not always necessary. NICE says that when antibiotics are required, the shortest course possible should be prescribed to reduce the risk of antimicrobial resistance. Prof Mark Baker, director for the centre of guidelines at NICE, said: "We recognise that the majority of UTIs will require antibiotic treatment, but we need to be smarter with our use of these medicines. "Our new guidance will help healthcare professionals to optimise their use of antibiotics. "This will help to protect these vital medicines and ensure that no one experiences side effects from a treatment they do not need."