A client is inquiring about the potential consequences of sleep deprivation on cardiovascular health. Which of the following is a potential impact of sleep and wakefulness disorders on cardiovascular risk?

Choice A rationale:

Actigraphy is a method that involves wearing a wrist-worn device that monitors movement and light exposure to infer sleep patterns and circadian rhythms. It's often used in sleep research and can provide long-term data, but it doesn't directly measure physiological parameters like brain waves, eye movements, and heart rate. Therefore, it's not the correct choice for this scenario.

Choice B rationale:

The Maintenance of Wakefulness Test (MWT) is used to assess a person's ability to stay awake during a quiet, daytime environment. It's typically used to evaluate excessive daytime sleepiness, especially in individuals with conditions like narcolepsy. This test doesn't involve monitoring physiological parameters during sleep and is performed while the person is awake, so it's not the correct choice.

Choice C rationale:

Polysomnography (PSG) is the correct choice. PSG is a comprehensive sleep study that involves monitoring various physiological parameters during sleep, including brain waves (electroencephalogram, EEG), eye movements (electrooculogram, EOG), muscle activity (electromyogram, EMG), and heart rate (electrocardiogram, ECG). This test is commonly used to diagnose sleep disorders such as sleep apnea, insomnia, and parasomnias.

Choice D rationale:

The Epworth Sleepiness Scale is a self-report questionnaire used to assess an individual's likelihood of falling asleep in various situations. It's a subjective measure of daytime sleepiness and doesn't involve monitoring physiological parameters during sleep, so it's not the correct choice.

Choice A rationale:

Insomnia often leads to significant daytime fatigue and tiredness due to inadequate sleep during the night. This statement indicates that the client is experiencing the expected consequence of insomnia, reinforcing the understanding of the client's symptoms.

Choice B rationale:

Mentioning that the client has been sleeping for more than 9 hours each night is not indicative of insomnia. In fact, excessive sleep is more characteristic of hypersomnolence rather than the difficulty in falling asleep or staying asleep associated with insomnia.

Choice C rationale:

Stating that the client wakes up feeling refreshed and alert every morning contradicts the typical experience of someone with insomnia. People with insomnia usually wake up feeling tired and unrefreshed due to the disrupted sleep they've had during the night.

Choice D rationale:

Expressing that the client experiences intense headaches during the day is not a specific symptom of insomnia. Headaches could be related to various causes and might not be directly linked to the client's sleep patterns.