RST Practice Test

The Registered Sleep Technologist (RST) credential is held by sleep technologists certified through the American Board of Sleep Medicine. The exam is discontinued to new candidates, so this page serves current holders and anyone revising sleep technology skills. It lists the verified credential facts and free practice sets covering recording, scoring, setup and therapy.

RST Exam at a Glance

What changed for RST in 2026

• Oct 28, 2026: Renewal changed to Every 5 years (through Dec 31, 2032) (previously ABSM recertification until Dec 31, 2032).^[2]
• Oct 28, 2026: Eligibility changed to Accepted credential for BRPT RPSGT Pathway 2; exam discontinued to new candidates (previously No new RST candidates; RST holders can use BRPT RPSGT Pathway 2).^[3]

What the RST is and how it works

The Registered Sleep Technologist (RST) credential comes from the American Board of Sleep Medicine (ABSM) and recognises technologists who work in sleep testing. The exam is now discontinued to new candidates. This page is therefore most useful to people who already hold the credential, people comparing pathways, and technologists who want to revise sleep technology topics with practice questions.

The facts we can verify are narrow. The BRPT eligibility page lists the RST as an accepted healthcare credential for RPSGT Pathway 2. The ABSM states that current RST holders must recertify every 5 years, and that it will administer recertification and continue to maintain and verify active credentials through Dec. 31, 2032. The recertification fee shown by the ABSM is $50.

We have not verified the exam's delivery format, time limit, question count, passing score or retake rules, so we do not state them here. Requirements can also change, and some details may vary by employer or by state licensing rules. Before you plan around a date or a fee, check the ABSM pages for the RST and for recertification, and the BRPT eligibility page.

The practice sets below were written by us with AI tools. They are not real exam questions, and they are meant for revision, not as a prediction of any test.

Worked examples: how to reason through RST questions

These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.

Example 1

Question: Which electrode placement is critical for measuring brain wave activity during polysomnography?

1. C3-A2 and O2-A1
2. Fp1-Fp2
3. T3-T4
4. Pz-Oz

Answer: A. C3-A2 and O2-A1

Explanation:

C3-A2 and O2-A1 is correct. These are standard EEG derivations for sleep staging: a central channel and an occipital channel, each referenced to a mastoid. Central placement shows spindles and K-complexes, and the occipital channel shows posterior activity such as alpha rhythm. Fp1-Fp2 is a pair across the frontal pole, not a standard staging derivation, and it is easily contaminated by eye movement. T3-T4 spans the temporal regions and is not the usual staging pair. Pz-Oz uses midline parietal and occipital sites that are not the conventional choice either. The rule to remember: for staging, think central and occipital channels referenced to the mastoids, and treat other pairs as additions, not replacements.

Example 2

Question: In central sleep apnea (CSA), what distinguishes apnea events from OSA events?

1. Presence of snoring during events
2. Absence of respiratory effort during apnea
3. Associated limb movements
4. Exclusive occurrence during REM sleep

Answer: B. Absence of respiratory effort during apnea

Explanation:

Absence of respiratory effort during the event is correct. In central sleep apnea the drive to breathe pauses, so airflow stops and the effort belts show no movement. In obstructive events the airway is blocked but the chest and abdomen keep trying to move. Snoring points toward airway narrowing and is not a defining feature of central events. Associated limb movements describe a different problem and do not separate central from obstructive apnea. Occurring only in REM sleep is wrong because neither type is limited to a single stage. The rule to remember: check the effort channels. Effort present means obstructive, effort absent means central.

Example 3

Question: When assessing a patient's medication list prior to a polysomnogram, which class of drugs is well-known to suppress the respiratory drive, potentially worsening sleep-disordered breathing?

1. Statins
2. Opioids
3. Proton Pump Inhibitors
4. Non-steroidal anti-inflammatory drugs (NSAIDs)

Answer: B. Opioids

Explanation:

Opioids are correct. They depress the brain's drive to breathe and can also relax upper airway muscles, so they can produce central apneas, hypoventilation or worse obstruction. That is why the technologist records them before the study, so the interpreting physician can take them into account. Statins act on cholesterol and are not known for suppressing breathing. Proton pump inhibitors reduce stomach acid and do not depress respiratory drive. NSAIDs relieve pain and inflammation without a known sedating effect on breathing. The rule to remember: during the medication review, flag sedatives and opioids first, because they change both the risk and the interpretation of the recording.

How to use these practice tests

Start with the official material, because we cannot verify the current exam details for you. Read the ABSM pages for the RST and for recertification, and note any dates or fees that apply to your situation.

Then use the practice sets by topic. Begin with RST Study Preparation and Instrumentation and RST Patient Setup and Instrumentation to settle the basics of electrodes, sensors and equipment. Move on to RST Sleep Stage and Event Scoring and RST Artifact Recognition and Troubleshooting, where recognising patterns matters most.

Finish with RST Therapeutic Interventions and Titration and RST Patient Assessment and Education.

After each set, write down every question you missed and the rule behind the right answer, in your own words. Return to those notes in short sessions, and retake a set only after you have reviewed your misses. Check your weak topics against your clinical references, since our explanations are AI-assisted and short.

Sources & last verified

1. American Board of Sleep Medicine — exam fee (official source). “Recertification Fee – $50.00” Verified Oct 28, 2026.
2. American Board of Sleep Medicine — renewal (official source). “Current RST credential holders must recertify every five years. The ABSM will administer recertification and will continue to maintain and verify active credentials through Dec.…” Verified Oct 28, 2026.
3. brpt.org — eligibility (official source). “Registered Sleep Technologist (RST)” Verified Oct 28, 2026.

How we verify: editorial & fact-checking policy. Report an error: contact us.