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Iron Deficiency Anaemia

Iron deficiency anaemia is when blood counts are low because of too little iron.

Symptoms

People with mild iron deficiency anaemia may not have any symptoms. However, when the iron levels drop past a certain point, a person may start to have one or more of the following symptoms:

  • Tiredness or weakness
  • Feeling like they can’t catch their breath
  • Headache
  • Breathing harder than usual
  • Chest pain
  • Fast heartrate
  • Feeling dizzy or faint
  • Unusually cold feet and hands
  • Weak and brittle nails

A patient may also notice unusual blood loss. Examples include heavy menses, bleeding with stools, bleeding with urination, blood in vomit, or nosebleeds.

Causes

Low iron levels cause iron deficiency anaemia. Low iron levels can occur because of one of the following:

  1. Not eating enough iron in the diet
  2. The body is unable to absorb iron in the diet
  3. Blood loss. Blood loss may be visible, microscopic (not visible to the naked eye), or internal (bleeding inside the body).

Risk Factors

Risk factors for developing iron deficiency anaemia can include:

  • Menstruating women, particularly those who pass large amounts of blood or bleed between periods
  • Pregnancy
  • Women who have just given birth
  • People who are unable to afford a variety of healthy foods
  • Infants and children, as they need more iron during growth spurts
  • People who have had part of their intestines surgically removed
  • People who have coeliac disease, which can impair iron absorption
  • People who donate blood a lot

Diagnosis

Iron deficiency anaemia is usually diagnosed with a simple blood test. Once diagnosed, a healthcare provider may request other tests to find out why a person is anaemic.

Complications

At its extreme, iron deficiency anaemia can cause death. This is the case with people who are bleeding uncontrollably.

However, most people begin to feel very unwell once the levels drop too low and seek treatment. Some complications can include:

  • An infant or child may not grow properly
  • Heart problems because the heart is trying to pump faster and faster to get enough oxygen to the rest of the body
  • Problems during pregnancy – the baby may not grow properly
  • Restless leg syndrome – when a person feels the need to constantly move their legs at night

Treatment

Treatment for iron deficiency anaemia is to stop any blood loss and then restore iron levels to a normal range. To achieve this, a healthcare provider may recommend:

  • Oral iron tablets
  • Iron infusions – iron given via cannula straight into the blood
  • Blood transfusion – donated blood from another person is put into the patient’s body via cannula
  • Colonoscopy – a procedure where a camera goes up the rectum and into the colon. A colonoscopy is recommended if a clinician suspects a person’s blood loss is coming from the colon. The procedure can diagnose and sometimes treat the problem once it’s found.
  • OGD (oesophagogastroduodenoscopy) – a procedure where a camera goes down the mouth and into the stomach. It looks for and treats causes of blood loss coming from the stomach
  • Surgery

Prevention

The best prevention for iron deficiency anaemia is to eat a diet that includes a variety of foods containing iron. Some iron-rich foods include meats, poultry, seafood, eggs, spinach, sweet potatoes, beans, lentils, figs, prunes, strawberries, watermelon, and whole wheat breads.

 
 
 

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