Indicator-Dilution Studies.
Under sterile conditions, the Indocyanine Green for Injection, USP powder should be dissolved with the Sterile Water for Injection, USP provided and the solution used within 6 hours after it is prepared.
The usual doses of Indocyanine Green for Injection USP for dilution curves are:
Adults 5.0 mg and Children – 2.5 mg, and Infants – 1.25 mg.
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Hepatic Function Studies.
Under sterile conditions, the Indocyanine Green for Injection, USP powder should be dissolved with the Sterile Water for Injection, USP provided. The patient should be weighed and the dosage calculated on the basis of 0.5 mg/kg of body weight. Exactly 5 mL of Sterile Water for Injection, USP should be added to the 25 mg vial giving 5 mg of dye per mL of solution.
Ophthalmic Angiography Studies. (2.3)
Dosages up to 40 mg Indocyanine Green for Injection, USP dye in 2 mL of Sterile Water for Injection, USP
The dosage depends on the intended application and the weight of the patient. For details, please see the instructions for use at Indocyanine Green for Injection, USP Package Insert.
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Fluorescein (FFA) and indocyanine green (ICG) angiography are simple diagnostic tests, which involve the injection of fluorescein (yellow) dye and / or indocyanine green into your bloodstream via a vein in your hand or arm, followed by a series of photographs taken over several minutes.
The FFA test gives your doctor more information about the condition of your retina in the back of your eye.
The ICG test provides information about the choroid which lies underneath the retina.
These tests help the doctor to consider the best treatment options for you. Please take your medication as normal on the day of your procedure and take asthma inhalers and GTN (glyceryl trinitrate) spray with you. You may eat and drink as normal.
Please allow 2 hours for your appointment.
We will explain the procedure and answer any questions you have beforehand.
Before the procedure, we need to give you eye drops to enlarge your pupils. This is to ensure that we have an overall view of the fundus (interior surface of the eye) when we perform the procedure.
During the procedure a fluorescent dye called fluorescein is injected into a vein in your arm. The dye travels quickly throughout your body, to your eye. As soon as the fluorescein is injected, several pictures are taken of your eye with a special camera to record the blood flow in your retina.
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Series of photos of your eye will be taken with a fundus camera, so you will see bright flashing lights. Your eyes will not be touched during this test. The test takes about five to ten minutes to complete. As we are injecting a drug into your vein, you need to give us formal consent to do this, and no treatment can be given without your consent. The drops will cause some blurring of vision and may last up to 12 hours. For this reason, you are advised not to drive on this day. The flash from the camera dazzles you for about 10 minutes. There are many different conditions that can affect the circulation of blood in your eye. This procedure can be useful in determining the exact diagnosis or retinal problem. Understanding the cause, or extent of a retinal disease, will help us to provide the correct treatment. As the dye is yellow in colour, your urine may be bright yellow for a couple of days. Your skin might have slightly yellow tint after the procedure. We recommend drinking plenty of water after the test, to flush the dye from your body. 1 in 10 patients may feel nauseous or vomit during the test. Rarely, other reactions to the dye occur. These include an itchy rash and, very rarely, anaphylaxis (a severe allergic reaction), which affects 1 in 10,000 patients. We recommend that you stay in the hospital for at least half an hour following the procedure. This is to make sure you don’t have any delayed reactions to the dye. If you feel unwell after you go home, please go to your nearest A&E. Please tell us if you have any allergies, such as iodine or shellfish, and any medical conditions or mental capacity concerns such as: Please also tell us if you are pregnant or if you feel unwell in any other way before having this injection. The PALS team will listen to your concerns, suggestions or queries and is often able to help solve problems on your behalf. Information: This leaflet is intended for patients receiving care in Brighton & Hove or Haywards Heath. The information in this leaflet is for guidance purposes only and is in no way intended to replace professional clinical advice by a qualified practitioner. Are you interested in learning more about Indocyanine Green Angiography? Contact us today to secure an expert consultation!Why am I having FFA and / or ICG?
Are there any side effects?
Is there anything I need to do before the procedure?
Let us know in advance if you’ll need an interpreter.