Hyperkalemia is defined as a serum potassium concentration higher than the upper limit of the normal range; the range in infants and children is age-dependent, whereas the range for adults is approximately 3.5-5.5 mEq/L. The upper limit may be considerably higher in young or premature infants, as high as 6.5 mEq/L.[5] Degrees of hyperkalemia are defined as follows[6] : 5.5-6.0 mEq/L – Mild 6.1-7.0 mEq/L – Moderate ≥7.0 mEq/L – Severe levels higher than 7 mEq/L can lead to significant hemodynamic and neurologic consequences. levels exceeding 8.5 mEq/L can cause respiratory paralysis or cardiac arrest and can quickly be fatal. Because of a paucity of distinctive signs and symptoms, hyperkalemia can be difficult to diagnose. Indeed, it is frequently discovered as an incidental laboratory finding. The physician must be quick to consider hyperkalemia in patients who are at risk for this disease process. (See Etiology.) However, any single laboratory study demonstrating hyperkalemia must be repeated to confirm the diagnosis, especially if the patient has no changes on electrocardiography (ECG). Because hyperkalemia can lead to sudden death from cardiac arrhythmias, any suggestion of hyperkalemia requires an immediate ECG to ascertain whether ECG signs of electrolyte imbalance are present (see Workup). Continuous ECG monitoring is essential if hyperkalemia is confirmed. Other testing is directed toward uncovering the condition or conditions that led to the hyperkalemia (see Workup). The aggressiveness of therapy for hyperkalemia is directly related to the rapidity with which the condition has developed, the absolute level of serum potassium, and the evidence of toxicity. The faster the rise of the potassium level, the higher it has reached, and the greater the evidence of cardiotoxicity, the more aggressive therapy should be. In severe cases, treatment focuses on immediate stabilization of the myocardial cell membrane, rapid shifting of potassium to the intracellular space, and total body potassium elimination. In addition, all sources of exogenous potassium should be immediately discontinued. (See Treatment.)

Osteoporosis causes bones to become weak and brittle — so brittle that a fall or even mild stresses such as bending over or coughing can cause a fracture. Osteoporosis-related fractures most commonly occur in the hip, wrist or spine. Bone is living tissue that is constantly being broken down and replaced. Osteoporosis occurs when the creation of new bone doesn't keep up with the removal of old bone. Osteoporosis affects men and women of all races. But white and Asian women — especially older women who are past menopause — are at highest risk. Medications, healthy diet and weight-bearing exercise can help prevent bone loss or strengthen already weak bones.

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Skin changes are among the most visible signs of aging. Evidence of increasing age includes wrinkles and sagging skin. Whitening or graying of the hair is another obvious sign of aging. Your skin does many things. It: Contains nerve receptors that allow you to feel touch, pain, and pressure Helps control fluid and electrolyte balance Helps control your body temperature Protects you from the environment Although skin has many layers, it can generally be divided into three main parts: The outer part (epidermis) contains skin cells, pigment, and proteins. The middle part (dermis) contains blood vessels, nerves, hair follicles, and oil glands. The dermis provides nutrients to the epidermis. The inner layer under the dermis (the subcutaneous layer) contains sweat glands, some hair follicles, blood vessels, and fat. Each layer also contains connective tissue with collagen fibers to give support and elastin fibers to provide flexibility and strength.

Breast Cancer Screening Recommendations Breast cancer screening is important for all women. If you are at higher risk of breast cancer, you may need to be screened earlier and more often than women at average risk. Breast cancer screening is only recommended for some men at very high risk due to an inherited gene mutation or a strong family history of breast cancer.

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Shingles is a viral infection that causes a painful rash. Although shingles can occur anywhere on your body, it most often appears as a single stripe of blisters that wraps around either the left or the right side of your torso. Shingles is caused by the varicella-zoster virus — the same virus that causes chickenpox. After you've had chickenpox, the virus lies inactive in nerve tissue near your spinal cord and brain. Years later, the virus may reactivate as shingles. While it isn't a life-threatening condition, shingles can be very painful. Vaccines can help reduce the risk of shingles, while early treatment can help shorten a shingles infection and lessen the chance of complications.

Atopic dermatitis (eczema) is a condition that makes your skin red and itchy. It's common in children but can occur at any age. Atopic dermatitis is long lasting (chronic) and tends to flare periodically and then subside. It may be accompanied by asthma or hay fever.

Constipation is a common problem. It means either going to the toilet less often than usual to empty the bowels, or passing hard or painful stools (faeces). Constipation may be caused by not eating enough fibre, or not drinking enough fluids. It can also be a side-effect of certain medicines, or related to an underlying medical condition. In many cases, the cause is not clear. Laxatives are a group of medicines that can treat constipation. Ideally, laxatives should only be used for short periods of time until symptoms ease. Note: there is a separate leaflet on constipation in children. What is constipation? Constipation is common. If you are constipated it causes one or more of the following: Stools (faeces) become hard and difficult or painful to pass. The time between toilet trips increases compared with your usual pattern. (Note: there is a large range of normal bowel habit. Some people normally go to the toilet to pass stools 2-3 times per day. For others, 2-3 times per week is normal. It is a change from your usual pattern that may mean that you are constipated.) Sometimes, crampy pains occur in the lower part of your tummy (abdomen) You may also feel bloated and feel sick if you have severe constipation. What are the causes of constipation? Known causes include the following: Not eating enough fibre (roughage) is a common cause. The average person in the UK eats about 12 g of fibre each day. But, 18 g per day is recommended by the British Nutrition Foundation. Fibre is the part of plant food that is not digested. It remains in your gut. It adds bulk to the stools (faeces) and helps your bowels to work well. Foods high in fibre include fruit, vegetables, cereals and wholemeal bread. Not drinking much may make constipation worse. Stools are usually soft and easily passed if you eat enough fibre and drink enough fluid. However, some people need more fibre and/or fluid than others in order to avoid constipation. Some special slimming diets are low in fibre and may cause constipation. Some medicines can cause constipation as a side-effect. Examples are painkillers (particularly those with codeine, such as co-codamol, or very strong painkillers, such as morphine), some antacids, some antidepressants (including amitriptyline) and iron tablets; however, there are many others. See the list of possible side-effects on the leaflet that comes with any medicine that you may be taking. Tell a doctor if you suspect a medicine is making you constipated. A change of medication may be possible. Various medical conditions can cause constipation. For example, an underactive thyroid gland, irritable bowel syndrome, some gut disorders and conditions that cause poor mobility, particularly in the elderly. Pregnancy. About 1 in 5 pregnant women will become constipated. It is due to the hormonal changes of pregnancy that slow down the gut movements. In later pregnancy, it can simply be due to the baby taking up a lot of room in the tummy and the bowels being pushed to one side.

Homocystinuria is an inherited disorder that affects the metabolism of the amino acid methionine. Amino acids are the building blocks of life. Causes Homocystinuria is inherited in families as an autosomal recessive trait. This means that the child must inherit a non-working copy of the gene from each parent to be seriously affected. Homocystinuria has several features in common with Marfan syndrome, including joint and eye changes. Symptoms Newborn infants appear healthy. Early symptoms, if present, are not obvious. Symptoms may occur as mildly delayed development or failure to thrive. Increasing visual problems may lead to diagnosis of this condition. Other symptoms include: Chest deformities (pectus carinatum, pectus excavatum) Flush across the cheeks High arches of the feet Intellectual disability Knock knees Long limbs Mental disorders Nearsightedness Spidery fingers (arachnodactyly) Tall, thin build

Vasculitis is an inflammation of your blood vessels. It causes changes in the walls of blood vessels, including thickening, weakening, narrowing and scarring. These changes restrict blood flow, resulting in organ and tissue damage. There are many types of vasculitis, and most of them are rare. Vasculitis might affect just one organ, such as your skin, or it may involve several. The condition can be short term (acute) or long lasting (chronic). Vasculitis can affect anyone, though some types are more common among certain groups. Depending on the type you have, you may improve without treatment. Or you will need medications to control the inflammation and prevent flare-ups. Vasculitis is also known as angiitis and arteritis.

Genetic surfactant dysfunction disorders are caused by mutations in genes encoding proteins critical for the production and function of pulmonary surfactant. These rare disorders may produce familial or sporadic lung disease, with clinical presentations ranging from neonatal respiratory failure to childhood- or adult-onset interstitial lung disease. An overview of these disorders is presented in the table.. Interstitial lung diseases in children until recently were categorized by their histologic appearance in a manner similar to that used for adult forms of interstitial lung disease (ILD). In children, the lung histopathology findings associated with desquamative interstitial pneumonitis (DIP) are now known to often result from genetic mechanisms that disrupt normal surfactant production and metabolism. By contrast, DIP in adults is considered to represent a distinct type of ILD, which is strongly associated with cigarette smoking and carries a relatively favorable prognosis [1]. These genetic disorders also result in histopathologic patterns other than DIP, including findings of pulmonary alveolar proteinosis and chronic pneumonitis of infancy. An understanding of the pathogenesis of these disorders permits a mechanistic classification as genetic surfactant dysfunction disorders instead of their previous classification based upon histologic appearance.

Acute leukaemias develop quickly and need to be treated urgently. Chronic leukaemias develop more slowly and may not need to be treated for some time after they are diagnosed. Some forms may not require any treatment. Myeloid leukaemias arise from myeloid stem cells and are characterised by the accumulation of cancerous myeloid cells. Lymphoid leukaemias arise from lymphoid stem cells and are characterised by the accumulation of cancerous lymphoid cells such as B-cells and T-cells. The most common forms of leukaemia in adults are CLL and AML, and the common cancer in children is ALL. Leukaemia is more common in adults.

Back pain during pregnancy is a common complaint — and it's no wonder. You're gaining weight, your center of gravity changes, and your hormones are relaxing the ligaments in the joints of your pelvis. Often, however, you can prevent or ease back pain during pregnancy. Consider seven ways to give pregnancy back pain the boot. 1. Practice good posture As your baby grows, your center of gravity shifts forward. To avoid falling forward, you might compensate by leaning back — which can strain the muscles in your lower back and contribute to back pain during pregnancy. Keep these principles of good posture in mind: Stand up straight and tall. Hold your chest high. Keep your shoulders back and relaxed. Don't lock your knees. When you stand, use a comfortably wide stance for the best support. If you must stand for long periods of time, rest one foot on a low step stool — and take time for frequent breaks. Good posture also means sitting with care. Choose a chair that supports your back, or place a small pillow behind your lower back. 2. Get the right gear Wear low-heeled — not flat — shoes with good arch support. Avoid high heels, which can further shift your balance forward and cause you to fall. You might also consider wearing a maternity support belt. Although research on the effectiveness of maternity support belts is limited, some women find the additional support helpful. 3. Lift properly When lifting a small object, squat down and lift with your legs. Don't bend at the waist or lift with your back. It's also important to know your limits. Ask for help if you need it. 4. Sleep on your side Sleep on your side, not your back. Keep one or both knees bent. Consider using pregnancy or support pillows between your bent knees, under your abdomen and behind your back.

According to a recent study, most people's sexual romps last about 1.5–7 minutes. But, as Dr. Harry Fisch writes in his new book The New Naked: The Ultimate Sex Education for Grownups, 45 percent of men come in two minutes or less, leaving their female partners orgasmless. Here are some ways to extend your man's sexual stamina, and more likely have an orgasm yourself in the process.

To relieve mild menstrual cramps: Take aspirin or another pain reliever, such as Tylenol (acetaminophen), Motrin (ibuprofen) or Aleve (naproxen). (Note: For best relief, you must take these medications as soon as bleeding or cramping starts.) Place a heating pad or hot water bottle on your lower back or abdomen

Polycystic ovary syndrome (PCOS) is a common endocrine system disorder among women of reproductive age. Women with PCOS may have enlarged ovaries that contain small collections of fluid — called follicles — located in each ovary as seen during an ultrasound exam. Infrequent or prolonged menstrual periods, excess hair growth, acne, and obesity can all occur in women with polycystic ovary syndrome. In adolescents, infrequent or absent menstruation may raise suspicion for the condition. The exact cause of polycystic ovary syndrome is unknown. Early diagnosis and treatment along with weight loss may reduce the risk of long-term complications, such as type 2 diabetes and heart disease.

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