Final answer:
The medical abbreviation for attention deficit hyperactivity disorder is c. ADHD, which is a neurodevelopmental disorder that can include a range of symptoms such as inattention and impulsivity.
Step-by-step explanation:
The medical abbreviation for attention deficit hyperactivity disorder is c. ADHD. Attention Deficit Hyperactivity Disorder, commonly known as ADHD, is a neurodevelopmental disorder characterized by difficulty in maintaining attention, executive functioning difficulties, impulsivity, and hyperactivity which is not appropriate for a person's age. It is important to note that not all individuals with ADHD display hyperactivity; those without the hyperactivity aspect may be diagnosed with a subtype known as Attention Deficit Disorder (ADD). Additionally, many patients with ADHD may experience comorbidity, where they develop secondary disorders such as depression or obsessive-compulsive disorder (OCD).