How did people find out about their mild kidney impairment?

We asked people how they had found out that their kidney function was below normal. The people we talked to had been diagnosed with a mild kidney impairment for different lengths of time, ranging from just a few weeks to 20 years or more. Jackie has always known about her kidney damage. Her kidneys were damaged in childhood as a result of repeated kidney infections, so she has needed to take tablets to lower her blood pressure since the age of 10. Robert, now aged 70, found out about his kidney impairment in his late forties after being diagnosed with high blood pressure. Jill, aged 77, learned only very recently that her kidney function was decreased after her GP did a general check-up testing her liver, kidneys and cholesterol.

Bill was first told 12 years ago that his kidneys weren’t working properly; although he has regular blood tests for his diabetes, his kidney function hasn’t been mentioned again until recently.

Age at interview 71

Gender Male

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Gerald was referred to the renal clinic three years ago after his GP found raised creatinine levels. However, his kidney impairment has caused slight concern over the last 5 months because it may affect which treatment he can have for his angina.

Age at interview 79

Gender Male

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A mild kidney impairment does not usually cause symptoms, so a decrease in kidney function is often only picked up because people have routine check-ups or investigations for other problems. Many people we talked to attended regular check-ups with their doctor or nurse for other health conditions such as diabetes, heart disease or high blood pressure. Bill’s GP told him during one of his diabetes check-up appointments five years ago that his kidney function was ‘borderline’ but did not explain anything else about it. Martin, who had Non-Hodgkin’s Lymphoma in 2009, had his kidney impairment diagnosed during his annual review with the specialist oncology team. Peter’s decrease in kidney function was detected because he had frequent blood tests in the weeks and months following a heart attack.

Eric’s kidney impairment was detected through a kidney scan as part of hospital investigations into the cause of his anaemia. He found out about it when he received a copy of the consultant’s letter to his GP.

Age at interview 79

Gender Male

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Kath found out that her kidney function had been damaged by the diclofenac she had been prescribed for her rheumatoid arthritis when she was in hospital for a hip replacement.

Age at interview 72

Gender Female

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Martin has comprehensive tests every year as part of the after-care for his Non-Hodgkin’s Lymphoma. Last year the oncology team told him he had a decrease in his kidney function but did not seem concerned about it.

Age at interview 70

Gender Male

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Even though people with early stage chronic kidney disease do not usually have symptoms, kidney function can be seen as a ‘barometer’ of a person’s overall health and well-being. A few people we spoke to had found out about their kidney impairment as a direct result of consulting their doctor because they had been feeling unwell. Lesley consulted her GP because her legs were swollen. He prescribed her a diuretic (water tablet) and ordered blood tests. A few weeks later she received a letter informing her that she had early stage chronic kidney disease. John X felt run down after separating from his wife and was concerned about the health impact of his drinking. His GP tested his liver and kidney function and found that both were reduced. Pat consulted her GP with multiple health problems but was particularly concerned about swelling in her legs and yellowing of the whites in her eyes. One of the conditions she was diagnosed with was reduced kidney function.

Laura consulted her GP because she experienced intermittent headaches. Tests showed she had high blood pressure and reduced kidney function. She is glad her impairment was discovered early and has remained stable since.

Age at interview 60

Gender Female

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Pat has ongoing investigations to detect the causes of her multiple health problems. Her GP ordered monthly blood tests after she consulted about yellowing of the whites in her eyes.

Age at interview 62

Gender Female

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A few people we talked to had learned about their kidney impairment because their GP had called them in to review or adjust medication they were taking for other health problems. Certain medications will require the people who take them to have regular blood tests to ensure that they are receiving the correct dosage and that possible side effects are detected early (see also ‘Controlling blood pressure‘). David’s GP called him in to test his kidney function after the Department of Health issued a directive on the use of diclofenac (‘Voltarol’) cautioning about its possible side effects on kidney health. Joanne and Simon both had a decrease in kidney function detected by routine blood tests they were having as part of taking lithium for bipolar disease.

Simon found out that his kidney function was decreased when his GP asked to see him for a medication review. He has since reduced the amount of lithium he takes for his bipolar disorder.

Age at interview 56

Gender Male

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Not everyone could recall a clear-cut ‘diagnostic moment’ when their doctor had explicitly told them that they had a kidney impairment, though they sometimes remembered that kidney function had been mentioned in passing by one or more of the health professionals they would see on a routine basis. The majority of people we talked to were aware that their kidney health was being monitored through regular blood tests, but several of them had not known that their kidney function was decreased before they had been invited to take part in this study.

Ken found out 6 months ago that his regular blood tests were part of being monitored for a mild kidney impairment. Ken was surprised but not concerned as the GP had just mentioned it in passing

Age at interview 72

Gender Male

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Joan only found out about her kidney impairment when the diabetes nurse invited her to take part in this study. Whenever she had asked the doctors about her kidneys before she had been told they were fine.

Age at interview 70

Gender Female

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Most people we talked to had been told about their kidney impairment during a face-to-face consultation with a doctor or nurse. However, a few people had found out that they had chronic kidney disease, or CKD, through receiving copies of letters between GPs and consultants or because they had asked to see a copy of their test results. For Lesley, reading a blunt diagnosis in a letter without immediate access to a health professional to explain its meaning was anxiety-provoking, and she immediately asked for a GP appointment.

Sarah was amazed to learn from a copy of her hospital report that blood tests had shown her to have CKD stage 3 several months earlier. Her GP had not informed her yet.

Age at interview 77

Gender Female

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Health professionals may hold different views on when it becomes necessary to inform patients that they have developed a mild kidney impairment (see also ‘When should doctors inform people of a mild kidney impairment?‘). Margaret, and Bernard’s wife Shelley, are examples of people we talked to who found out about their impairment ‘by accident’ when they happened to see a doctor or nurse different from their regular health professional, who mentioned kidney damage assuming that they knew about it.

Margaret didn’t know the medicine she had been prescribed had affected her kidneys until a nurse commented on her kidney impairment a couple of years ago.

Age at interview 72

Gender Female

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When volunteering as a case study, Bernard’s wife Shelley was horrified to overhear a GP telling his students that her kidneys were damaged when she had never been told.

Age at interview 79

Gender Male

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How and why is kidney function monitored?

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