What is an input/output chart? This chart (also known as a frequency-volume chart or bladder diary) is used to assess how much fluid you drink, to measure your urine volume, to record how often you pass urine over 24 hours and to show any episodes of incontinence (leakage). The results are important in diagnosing the cause

What is an output chart? This chart is designed to assess how often you pass urine by day and by night. It will help us diagnose and treat your urinary symptoms. The chart should be completed over 7 consecutive, fairly typical days (choose any 7 days to suit you). What do I …

Each time you pass urine you will need to catch it in a container calibrated in volumes. For a minimum of 3 days and nights record how much you drink (intake) and how much urine you pass (output) - they DO NOT have to be 3 days in a row. - Date.

This chart is designed to assess how much fluid you drink, and how much urine you pass in a 24-hour period. It will help us diagnose and treat your urinary problems,

give us a record of how much you normally drink, how much urine you make, and how often you empty your bladder on a daily basis. Keep the chart with you and fill it out as completely as possible.

Urine output in an adult is between 1000 to 1500 ml per day. Another normal means of output of water is through evaporation of water from the skin and mucous membranes (mouth, throat, respiratory tract) and also through sweating. The amount contributed by these two mechanisms is about 800-1200 ml (dependent on climate and environment).

What can you do to measure your input and output? There is a chart at the back of this booklet where you can write down every time you have a drink. This will give an accurate record of how much fluid has gone into your body. The nursing team will …

Below the graphic there is a short URL which can be typed into a web browser, and will take you to the same document (if no QR code scanner is available). This graphic also appears on the print versions of the relevant patient information leaflet, from where it can also be scanned.

Using the chart and the instructions below, please record both the volume of what you are drinking and the volume of urine you are passing. Write down the number of cups / glasses of liquid you drank in that hour. You will need a cheap plastic measuring jug to measure your urine output in millilitres (mls).

Use the Intake/Output Chart to record every drink, every wee (including wetting) and every poo (including soiling) your child has/does. The chart is available in the PDF file above.