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Clinical Signs Beginning With I

4 signs in this guide begin with the letter I. Every name links to a page explaining what the sign is, how it is elicited on examination, what a positive finding is associated with, and — for eponyms — who the sign is named after.

A B C D E F G H I J K L M N O P Q R S T U V W X Y

SignSystemA positive finding is associated with
Increased tactile fremitusChest & BreathingAssociated with consolidation of the underlying lung; fremitus is reduced with pleural effusion or pneumothorax.
Intercostal recessionChest & BreathingAssociated with increased work of breathing and airway obstruction, especially in infants and children.
Inverted supinator reflexNeurologyAssociated with a cervical spinal cord lesion around C5–C6, combining root and cord signs at that level.
Ishihara testGeneral, Eyes & EarsUsed to screen for inherited red-green colour vision deficiency.
Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.