Behavioral Consult

Diagnosing adolescent ADHD


 

Pediatricians are increasingly expert in the assessment and treatment of attention-deficit/hyperactivity disorder. But what do you do when adolescents present to your office saying they think they have ADHD? While ADHD is a common and treatable disorder of youth, it is important to take special care when assessing an adolescent. Difficulties with attention and concentration are common symptoms for many different challenges of adolescence, and for ADHD to be the underlying cause, those symptoms must have started prior to adolescence (according to DSM-5, prior to the age of 12). When your adolescent patients or their parents come to your office complaining of inattention, it is important to consider the full range of possible explanations.

Sleep

We have written in this column previously about the challenges that adolescents face in getting adequate sleep consistently. Teenagers, on average, need more than 9 hours of sleep nightly and American teenagers get fewer than 6. This mismatch is because of physiologic shifts that move their natural sleep onset time significantly later, while school still starts early. It’s often compounded by other demands on their time, including homework, extracurricular activities, and the gravitational pull of social connections. Independent teenagers make their own decisions about how to manage their time and may feel sleep is optional, or manage their fatigue with naps and caffeine, both of which will further compromise the quality and efficiency of sleep.

Dr. Susan D. Swick, physician in chief at Ohana, Center for Child and Adolescent Behavioral Health, Community Hospital of the Monterey (Calif.) Peninsula.

Dr. Susan D. Swick

Chronic sleep deprivation will present with difficulties with focus, attention, memory, and cognitive performance. Treatment of this problem with stimulants is likely to make the underlying poor sleep habits even worse. When your patient presents complaining of difficulty concentrating and worsening school performance, be sure to start with a thorough sleep history, and always provide guidance about the body’s need for sleep and healthy sleep habits.

Anxiety

Anxiety disorders are the most common psychiatric illnesses of youth, with estimates of as many as 30% of children and adolescents experiencing one. The true prevalence of ADHD is estimated to be about 4% of the population. Whether social phobia, generalized anxiety disorder, or even posttraumatic stress disorder, anxiety disorders interfere with attention as ruminative worry tends to distract those experiencing it. It can also affect attention and focus indirectly by interfering with restful sleep. Anxiety disorders can be difficult to identify, as the sufferers typically internalize their symptoms. But inquire about specific worries (such as speaking in front of others, meeting new people, or an illness or accident striking themselves or a loved one) and how much time they take up. Explore if worries fill their thoughts during quiet or downtime, and explore more about their worries. You may use a screening instrument such as the Pediatric Symptom Checklist or the SCARED, both of which will indicate a likely problem with anxiety. While it is possible to have comorbid ADHD with an anxiety disorder, the anxiety disorder will likely worsen with stimulants and should be treated first. These are usually curable illnesses and you may find that remission of anxiety symptoms resolves the attentional problems.

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