A nurse is assessing a 45-year-old patient with a 10-year history of HIV/AIDS who presents with progressive neurological symptoms, including memory problems and difficulty concentrating. Which assessment finding would be most indicative of HIV-associated neurocognitive disorder (HAND)?

HAND is best indicated by deficits in executive function and psychomotor slowing on cognitive testing, which are specific diagnostic findings. Other options represent common HIV complications but are not definitive for HAND.

Understanding the Question

This question asks you to identify the finding most indicative of HIV-associated neurocognitive disorder (HAND). The patient’s presentation—progressive memory problems and difficulty concentrating—already points toward cognitive impairment. The task is to distinguish the assessment finding that best captures the core features of HAND from findings that indicate other HIV-related complications or simply reflect disease severity.

Why the Correct Answer is Option 4

The correct answer is Difficulty with executive function and psychomotor slowing on cognitive testing.

HAND is a spectrum of neurocognitive disorders caused by HIV invading the central nervous system ^[2]. The clinical presentation has shifted over time. Before effective antiretroviral therapy, a severe subcortical dementia was common. With modern treatment, the spectrum has changed to milder forms of impairment ^[3]. The hallmark deficits in HAND are subcortical in nature, prominently affecting executive function (planning, organizing, mental flexibility) and psychomotor speed (slowed thinking and movement) [1,3,4]. A comprehensive neuropsychological test battery for diagnosing HAND specifically assesses these domains, along with attention, working memory, and information-processing speed ^[4]. Therefore, directly observing these specific cognitive deficits on formal testing is the most indicative clinical finding for HAND.

Why the Other Options are Incorrect

- Option 1: Presence of oral thrush and esophageal candidiasis. These are clinical markers of severe immunodeficiency, not direct indicators of HAND. They reflect a low CD4 count and the progression of HIV to AIDS, which increases the risk for opportunistic infections and HAND, but they are not diagnostic findings for the neurocognitive disorder itself.

- Option 2: CD4+ T-cell count of 180 cells/μL with detectable viral load. This finding indicates significant immunosuppression and active viral replication. While a low CD4 nadir and a detectable viral load are major risk factors for developing HAND, this laboratory result describes the severity of systemic HIV disease, not the specific cognitive phenotype. HAND can also occur in patients with well-controlled virus and higher CD4 counts [2,3].

- Option 3: Complaints of peripheral neuropathy in hands and feet. Peripheral neuropathy is a common neurologic complication of HIV, often related to the virus itself or neurotoxic antiretroviral medications. However, it is a disorder of the peripheral nervous system, whereas HAND is a disorder of the central nervous system. The patient’s primary complaint is cognitive, making a central nervous system process far more relevant.

Connecting the Evidence to Clinical Reasoning

The provided abstracts reinforce this clinical picture. One study on older people with HIV found that slower gait speed—a marker of psychomotor slowing—was significantly associated with poorer global neurocognition ^[1]. This directly links the motor slowing component of HAND to cognitive performance. Another source describes the diagnostic approach, emphasizing that formal neuropsychological testing is required to classify the milder, asymptomatic forms of HAND that are now prevalent ^[3]. The development of specific test batteries, such as the CoCoBattery, highlights the need to systematically evaluate domains like executive function and information-processing speed to make an accurate diagnosis ^[4]. These sources collectively establish that the core, measurable deficits of HAND are cognitive, particularly in the domains of executive control and processing speed, making cognitive testing the gold standard for assessment [3,4].