PSG Final 2024/2025 100% VERIFIED CORRECT ANSWERS, Exams of Nursing

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PSG Final 2024/2025 100% VERIFIED CORRECT ANSWERS The Ultradian process is the balance between REM and NonREM sleep Wakefulness is characterized by higher sympathetic activity Circadian rhythm is controlled by hypothalamic suprachiasmatic nucleus In teenagers __________ is noted worldwide phase delay sleep Ohm's law states Current equals voltage divided by resistance Polarity is the positive or negative nature of an electrical signal the G1 electrode in a differential amplifier is the exploring electrode During a sleep study the G1 electrode has an input of 5uV and the G2 signal has 10uV -5 Using two ground leads will cause ground loop The EEG signal in a sleep study use a ________ montage Referential The minimal sampling rate accepted by the AASM for a digital polysomnographic system is 200Hz The Occipital Protuberance in the International 10/20 Electrode Placement System is known as Inion Your measurement from left pre-auricular to right pre-auricular is 36cm. C3 & C4 will be marked _________ down from Cz 7.2cm The patient's head circumference measures 54cm. Fp1 will be marked at ________ from Fpz 2.7cm These electrodes are used to monitor eye movements: ROC & LOC Leg leads are placed on the: Anterior Tibialis muscles The "preferred" EKG placement is : 1 electrode Right chest 3cm below the Right clavicle and 1 electrode Left lower rib The eye leads are placed: 1cm lateral and 1cm up/down To find proper placement of the Anterior Tibialis electrodes you should: Have the patient flex his/her feet The placement of the chin leads should be To correct ECG artifact in the EEG the technologist should use common mode rejection of M1 and M2 If cardiac arrest is noted during the study the technologist should start CPR The MSDS allow the technologist to know how to handle and utilize chemicals in the workplace Who is in charge of infection control in the lab Everyone, management, cleaning service, sleep techs, it is up to everyone to practice infection control EEG leads should be cleaned with soaked in general disinfectant A family physician refers a patient to the lab for a baseline sleep study, what information should he send to the lab *Complete history in the records including sleep specific information *An order with specific tests to be performed including diagnosis code *A list of all medications the patient is taking HIPPA stands for Health Insurance Portability and Accountability Act of 1996 The CPAP/BiPAP pressure can be adjusted while the patient is awake. T/F False EEG measures brainwaves while EMG measures muscle activity. T/F True Cup electrodes are usually made of gold. T/F True The cornea of the eye is negatively charged with respect to the retina. T/F False The biological clock that regulates sleep and wake is located in: the hypothalamic suprachiasmatic nucleus The law passed in 1996 to protect the privacy of a patient is: The Health Insurance Portability and Accountability Act From Nasion to Inion the patient measures 38cm. From Pre-auricular point to Pre-auricular point the patient measures 40cm. Head circumference is 60cm. What is the measurement from O1 to O2? 6cm In teenagers worldwide it is noted that they experience: Phase delay sleep disorder Several factors that affect the circadian rhythm are: Light, Tempurature, & Drugs Another name for a 60Hz filter is: Notch CPAP delivers _______________, whereas BiPAP delivers_____________: One pressure, Two pressures CPAP is measured in: cmH2O pressure The normal EKG range for a QRS complex is: 0.04-0.10 seconds The right EOG is placed primarily: 1cm out and 1cm up from the outer canthus The role of the Thalamus is: To communicate between the cerebral cortex and reticular formation All of the following can be associated with shift work disorder except: fibromyalgia The G1 electrode in a differential amplifier is the: exploring electrode During a sleep study, the G1 electrode has a signal input of 5uV and G2 has a signal input of 10uV. What is the output voltage? -5 BiPAP is expressed as: IPAP/EPAP The _____________ is where most partial or complete airway collapse occurs especially when a patient is supine. larynx Deoxygenated blood is carried from the right ventricle to the lungs through: the pulmonary artery The amount of time it takes a calibration signal to fall from its highest point or peak to 37% of its peak is called: Fall time Ideally optimal PAP titration strives for: RDI of <5, SpO2>90%, & Snoring eliminated airflow, thoracic, & abdominal The EEG electrodes needed for a sleep study are: M1, M2, C3, C4, F3, F4, O1, O2 Refers to an unwanted signal appearing in a recording channel on the polysomnograph: artifact When measuring from nasion to inion, what percentage do measure up from the inion to OZ: 10% A series of exercises performed by the patient prior to the start of the study are: biocalibration After passing the __________ exam, a technician is credentialed as a __________. BRPT, RPSGT Sinus bradycardia has a rate that is: less than 40 beats per minute A lose EEG lead, an electric fan or a bad ground can all lead to: 50/60 cycle artifact The most important part of PAP titration is: mask fitting If G1 receives a signal of -100uV at the same time G2 receives a signal of -50uV, what is the output signal? -50uV Maximum CPAP pressure for an adult according to the AASM is: 20cm H2O The amount of time for a calibration signal to rise from baseline to 63% of the peak is Rise time Which of these types of wires is best for recording EEG activity? Cup electrodes What is the purpose of the Low Frequency Filter? Eliminating undesired slow frequencies A sleep study usually includes all but which of the following measurements? ERG The circumference of the patient's head is 60cm. What is the distance from O2 to T4? 12.0cm The normal EKG range for the PR Interval is: 0.12-0.20 seconds A type of EKG rhythm with a PVC every third beat is called: Trigeminy What is the formula used to determine amplitude A=V/S Sensitivity is measured in microvolts/cm P wave represents atrial depolarization QRS complex ventricular depolarization T wave ventricular repolarization