Fluid retention (oedema)

Fluid regularly leaks into body tissues from the blood. The lymphatic system is a network of tubes throughout the body that drains this fluid (called lymph) from tissues and empties it back into the bloodstream. Fluid retention (oedema) occurs when the fluid isn’t removed from the tissues.

The 2 broad categories of fluid retention include:

• when particular parts of the body are affected.

  However

• it is recommended that you see your doctor rather than self-treat

• because oedema can be symptomatic of serious medical conditions such as disease. Symptoms of fluid retention can include

• in other cases

• the skin may not hold an indent when pressed (non-pitting oedema)

Some of the many common causes of fluid retention include: – standing up for long periods of time allows fluid to ‘pool’ in the tissues of the lower leg. – the body tends to be less efficient at removing fluid from tissues during the summer months. The skin retains fluid and swells in response to burn injuries.

– certain drugs, including high blood pressure medication (antihypertensives), corticosteroids and nonsteroidal anti-inflammatory drugs (NSAIDs) are known to cause fluid retention. – weakened valves in the veins of the legs fail to efficiently return blood to the heart. The pooling of blood can result in Fluid retention may be a symptom of serious underlying conditions, including: – if the heart does not pump effectively, the body compensates in various ways.

It starts to retain fluid and increase the volume of blood. This results in congestion of the veins, enlargement of the liver, and the accumulation of fluid in body cavities like the abdominal cavity (ascites) and in subcutaneous tissues, causing swelling (oedema) of the legs – a rare condition occurring in approximately one in 50,000 people who have low levels or reduced effectiveness of a C1-inhibitor enzyme.

The face, tongue, throat and gut can be involved, and upper airway attacks can be life threatening.

The underlying cause of the oedema must be found before treatment can begin. Diagnostic tests may include:

• detailed questioning about the fluid retention such as when it started any factors that worsen the swelling
• whether it is constant or intermittent Depending on the cause
• treatment may include
• treatment for the underlying medical condition – such as hormone replacement (thyroxine) in the case of hypothyroidism aids such as support stockings

Mild fluid retention can be helped in the following ways: Reduce the amount of salt in your diet.

Don’t add salt during the cooking process and stop salting your meals at the table.

Avoid foods like potato chips and salted peanuts

Be wary of processed foods such as manufactured meats, which tend to contain ‘hidden’ salt.

Vitamin B6 (pyridoxine) is thought to help in cases of mild fluid retention

Good sources of vitamin B6 include brown rice and red meat.

Include fresh fruits and low-fat dairy foods in your daily diet. Supplements may help in the case of fluid retention caused by the menstrual cycle: for example calcium, magnesium, manganese, evening primrose oil and chaste tree.

Herbal diuretics including dandelion leaf, corn silk and horsetail. Make sure to discuss the use of supplements with your doctor or health care professional, particularly if you are on any type of medication. It may sound contradictory, but a well-hydrated body is less likely to retain fluid.

Cut back on dehydrating drinks such as tea, coffee and alcohol.

Cranberry juice has a mild diuretic action

Lie down with your legs higher than your head, when possible.

Exercise regularly

Wear support stockings

About fluid retention generalised oedema – when swelling occurs throughout the body localised oedema The wide range of causes includes the body’s reaction to hot weather, a high salt intake , and the hormones associated with the menstrual cycle heart , kidney or liver Symptoms of fluid retention swelling of affected body parts (feet, ankles and hands are commonly affected) aching of affected body parts stiff joints rapid weight gain over a few days or weeks unexplained weight fluctuations when pressed, the skin may hold the indent for a few seconds (pitting oedema) Causes of fluid retention Gravity Hot weather Burns – including sunburn Menstrual cycle Pregnancy The pill Dietary deficiency – such as insufficient protein or vitamin B1 (thiamine) Medications Chronic venous insufficiency varicose veins Medical conditions that may cause fluid retention kidney disease – such as nephrotic syndrome and acute glomerulonephritis heart failure chronic lung diseases – such as severe emphysema , which put excessive pressure on the heart’s right ventricle, leading to its failure liver disease – such as severe cirrhosis that triggers liver failure malignant lymphoedema – cancerous tumours that block structures of the lymphatic system, such as the lymph nodes thyroid disease – such as hypothyroidism arthritis – joints affected by some types of arthritis tend to swell with fluid allergic reaction – in susceptible people, the body tends to swell in response to particular allergens, such as an insect bite.

In some cases, the reaction is severe (anaphylaxis) and requires urgent medical attention. This swelling is short-lived rather than ongoing autoimmune diseases – such as lupus hereditary angioedema (HAE) Diagnosis of fluid retention physical examination medical history blood tests urine tests liver function tests kidney function tests chest x-ray heart function tests, such as electrocardiogram (ECG) Treatment for fluid retention a low-salt diet diuretics (water pills) lifestyle changes in response to the underlying medical condition – such as avoidance of alcohol if liver disease is the cause changes to medication or dosage – if drugs are the cause dietary adjustments – if malnutrition is the cause ongoing medical supervision Self-care options for fluid retention Vitamin B5 (pantothenic acid), calcium and vitamin D Drink plenty of water Where to get help Your GP (doctor) Pharmacist NURSE-ON-CALL (616) 555-0400 – for health information and advice (24 hours, 7 days) American Society of Clinical Immunology and Allergy (ASCIA) – Locate a specialist .