This leaflet is intended to provide information for people who have been advised to have a glucose tolerance test. It is very important to follow the guidelines given below so that your test is accurate and you don't need to repeat it.
Why bother checking a patient's liver function? We look at when and how to use liver function tests in clinical practice.
Sending samples to the laboratory for investigation is so routine in primary care that it is easy to take these tests for granted. But, as this new series highlights, it is important to understand the purpose of each test and how to act on the results. This article examines thyroid function tests (TFTs), which are an essential part of diagnosing and treating thyroid disease.
Urea and electrolytes (U&E) are the most commonly requested tests that we send to the laboratory. In fact, U&E are so routine that it is easy to take them for granted, but they are an essential aid to the diagnosis of kidney disease. It is important for practice nurses to understand why and when U&E are ordered, and how to act on the results if kidney problems are suspected.
In primary care, sending blood samples to the laboratory is so routine that it is easy to take these tests for granted. But it is important to understand the purpose of each test; when it is appropriate; and how to act on the results. Here red blood cell tests and their role in identifying possible causes for anaemia are discussed.
The World Health Organization has recommended that everyone should be eating more foods that contain potassium, and we routinely measure this electrolyte as part of the standard U&Es blood test. But why is potassium important for our health, and why do we need to worry if a patient's levels are too high or too low?