ASTEP Final Exam Questions with Correct Answers Latest Update 2026/2027

ASTEP Final Exam Questions with Correct Answers Latest Update 2026/2027 A patient should be done drinking caffeine 30 before an MSLT - Answers False What do you do if a patient falls asleep after 15 min. during an MWT - Answers Wake the patient up and end the test How soon before an MSLT should the patient be done smoking - Answers 30 min. Which of the following is true regarding the MSLT - Answers Begins about 1.5-3.0 hours after lights on and consists of 4 or 5 naps An airline pilot treated with PAP may need to undergo this test prior to work - Answers MWT When measuring the head for EEG placement what system would you use? - Answers 10/20 system If a drug is to be given at HS the medication should be given? - Answers Hour of sleep List tasks a patient must perform during biocalibrations to test three separate signals? - Answers Look right Look left Blink your eyes hold your breath move right leg move left leg It is recommended that a patient washes out of Modafinil prior to MSLT testing? - Answers True It was determined after the patient underwent an all-night sleep study that he had an AHI of 15.7 while supine and an AHI 2.1 lateral. Which of the following treatments would be most appropriate? - Answers Positional therapy By 6 months of age, which of the following waveforms are identifiable on a PSG? - Answers Sleep spindles K complexes Delta waves Bundle Branch Block is the result of one ventricle firing slower than the other? - Answers True The QRS complex represents which of the following? - Answers Ventricular depolarization Absence of airflow and respiratory effort for >20 sec. or 2 missed breaths followed by an arousal, awakening or >3% desaturation - Answers Central Apnea >90% decrease in airflow for 2 missed breaths associated with absent respiratory effort during one portion of the event and the presence of inspiratory effort in another portion, regardless of which comes first - Answers Mixed apnea >30% decrease in nasal pressure for 2 missed breaths followed by an arousal or >3% desaturation - Answers Hypopneas Which type of AV block has a PR interval that lenghthens with each beat until QRS complex is dropped? - Answers 2nd degree AV block- Wenchebach Your patient has come in for a CPAP titration. At a pressure of 20cm H2O, your patient continues to have obstructive events while lateral. What action do you take next? - Answers Switch the titration mode to Bi-level Lights Out is at epoch 10. The patient falls asleep at epoch 25. What is the sleep latency? - Answers 15/2=15 Sleep latency is at epoch 25 and the patient goes into REM sleep at 125. What is the REM latency? - Answers 100/2=50 Mr. Sandman has 20 respiratory events during a 2 hour baseline. What is his AHI? - Answers 20/120= 0.16x60=10 What are 3 stages of infant sleep? - Answers NREM REM TRANSITIONAL The _______________ is the final relay station for almost all of the sensory input to the brain? - Answers Thalamus The functional unit of the Nervous System is ? - Answers Neuron An irresistible urge to move the limbs associated with an uncomfortable sensation in the limbs (often described as a creepy, crawly, tingling, or burning sensation, most often involving the calves) is known as? - Answers Restless Legs Syndrome Your patient is here for CPAP retitration. Prior to the beginning of the study, he informs you that cannot keep his mouth closed when wearing CPAP at home. What type of mask will your patient most likely benefit from? - Answers Full face mask An 80 year old man with Parkinson's disease comes into the sleep center to be evaluated for unusual movements during the night. He reports acting out his dreams, which are sometimes violent in nature. He has inadvertently injured himself during a few of these episodes. what