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Skin prick allergy testing for respiratory (aeroallergen) allergies

Checking for allergies using a skin prick test is a safe way of identifying any substances that cause an allergic reaction when your child is exposed to them. This information sheet from Great Ormond Street Hospital (GOSH) describes what to expect when your child has a skin prick allergy test in the Lung Function Lab and the next steps needed, depending on the results of the test. 

‘Resistant bugs’: antibiotic resistance and multidrug-resistant organisms 

This page explains about 'resistant bugs': antibiotic resistance and multidrug-resistant organisms (MDROs) and why this has become a worldwide public health issue. It explains how these organisms are passed on and how they can be treated. It also explains about things we are doing at Great Ormond Street Hospital (GOSH) to reduce the chance of them spreading.

Clinical Outcomes

Clinical outcomes are broadly agreed, measurable changes in health or quality of life that result from our care. They are primarily measures of treatment effectiveness. However, clinical outcomes may also comprise other elements that can impact treatment effectiveness, such as safety and efficiency.

Clinical outcomes data are captured in many different ways, usually by healthcare professionals. In addition, Patient-Reported Outcome Measures (PROMs) are used to include the measurement of clinical outcome from the patient’s (and/or their family’s) perspective.

Quantitative Sensory Testing

Quantitative Sensory Testing (often called ’QST‘) allows us to measure changes in sensitivity to different types of sensations that can include temperature, touch or pressure. This information sheet from Great Ormond Street Hospital (GOSH) explains quantitative sensory testing for chronic pain and what to expect.


Gemtuzumab is used to treat a type of leukaemia. It is often given in combination with medicines called mitoxantrone and cytarabine. Gemtuzumab is a ‘biologic’ medicine, that is, it is a manmade version of a naturally occurring antibody. It works by targeting proteins on the surface of cancer cells so that they die. This page from Great Ormond Street Hospital (GOSH) explains what gemtuzumab is, how it is given and some of the possible side effects. 

Intravenous infusion of dihydroergotamine for headaches and migraines

This page from Great Ormond Street Hospital (GOSH) explains about your admission for a course of infusions of a medicine called dihydroergotamine (or DHE for short) given into a vein. You might have already tried various other medicines to improve your headaches and migraines. This is the next step in treatment. As well as explaining what will happen during the admission, this page tells you about the medicine itself and any side effects that may happen.

Factor XIII deficiency

Factor XIII deficiency is a type of clotting disorder. A specific protein is missing from the blood so that injured blood vessels cannot heal in the usual way. This information sheet from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of Factor XIII deficiency and where to get help.

Kidney biopsy

A biopsy is a small sample of tissue taken from any area of the body so it can be examined under a microscope. A sample of kidney tissue may be taken using an endoscope (a thin, flexible tube with a bright light and camera). This page from Great Ormond Street Hospital (GOSH) explains the kidney biopsy procedure and what to expect when your child comes to GOSH to have one. 


This information from Great Ormond Street Hospital (GOSH) explains about the gastroscopy procedure, what it involves and what to expect when your child comes to GOSH for treatment. You may also hear the procedure called an oesophagogastroduodenoscopy or OGD.