PRACTICE EXAM COMPLETE 400 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
What is the minimum and preferred sampling rate? - ANSWER: Min 200Hz; Preferred
500Hz
Which respiratory equipment is used to measure apneas? - ANSWER:
Thermistor/thermocouple
What are some common troubleshooting issues for the thermistor? - ANSWER:
Warm the room, remove fan, moisture on the sensor, battery needs to be changed
What is considered the gold standard for measuring respiratory effort? - ANSWER:
RIP belts
What equipment is used to measure RERAs and Hypopneas? - ANSWER: nasal
pressure transducer (PTAF)
What is some common troubleshooting issues for the PTAF? - ANSWER: rhinorrhea,
position of the sensor, mouthbreathing, LFF can cause a dampened waveform
Normal ETCO2 in mmHg and percent - ANSWER: 30 torr and 3-5%
What are common issues that can affect the TCOM reading? - ANSWER: skin
thickness, anemia, decreased perfusion
How do you calibrate the TCOM? - ANSWER: with RA
What will happen to the readings if the TCOM has a leak? - ANSWER: PO2 will
increase to room PO2, PCO2 will decrease to zero
The snore mic is used to detect what? - ANSWER: Bruxism
What are the scores of Epworth Sleepiness scale? - ANSWER: 0-5 low-normal
daytime sleepiness
6-10 high-normal daytime sleepiness
11-12 Mild EDS
13-15 Moderate EDS
16+ Severe EDS
What does STOP-BANG stand for? - ANSWER: Snoring?
Tired during the day?
Observed apneas
,Pressure (HTN)?
BMI
Age (>50)
Neck size (males 17in/43cm; females 16in/41cm)
Gender (male)
What does answering yes to 2 or less questions on the STOP BANG questionnaire
suggest? - ANSWER: low risk for OSA
What does answering yes to 3-4 questions on the STOP BANG questionnaire
suggest? - ANSWER: Intermediate risk for OSA
What does answering yes to 5+ questions on the STOP BANG questionnaire suggest?
- ANSWER: High risk of OSA
What is Sundowning? - ANSWER: When elderly patients get confused in the early
evening
What is an important factor to consider when dealing with a patient with PTSD -
ANSWER: Ask how is the best way to wake them up during the night if needed
What is the role of the sympathetic nervous system - ANSWER: fight or flight
what is the role of the parasympathetic nervous system - ANSWER: controls smooth
muscle
What is the pacemaker for circadian rhythm in the brain - ANSWER: suprachiasmatic
nucleus
What effect on sleep does a decrease in dopamine have? - ANSWER: decrease sleep
If the distance between 2 R waves is between 3-5 large blocks, the rate is ______ -
ANSWER: Normal
If the distance between 2 R waves is less than 3-5 large blocks, the rate is ______ -
ANSWER: greater than 90bpm (tachycardia)
If the distance between 2 R waves is greater than 3-5 large blocks, the rate is ______
- ANSWER: less than 60bpm (bradycardia)
What is the formula for estimating HR on ECG - ANSWER: 300/(# of large blocks btwn
R waves)
What are the causes and treatment of sinus tach - ANSWER: hypoxemia, pain, stress
oxygen
, What are common causes and treatment of sinus brady - ANSWER: blood loss,
infection of heart, OSA
treat underlying cause
What are common treatments for PVCs - ANSWER: oxygen, lidocaine
What is bigeminy - ANSWER: PVC every other beat
Trigeminy - ANSWER: PVC every 3rd beat
Couplet - ANSWER: 2 PVCs in a row
What is the treatment for VTach with a pulse - ANSWER: cardioversion
What is the treatment for VTach without a pulse - ANSWER: defibrillation
Cardiac ischemia is indicated by - ANSWER: depressed t waves
Cardiac injury is indicated by - ANSWER: elevated ST segment
What can cause inverted t waves - ANSWER: digitalis toxicity and hypokalemia
What causes spiked t waves - ANSWER: hyperkalemia
This rhythm creates a series of identical p waves that take on a sawtooth
appearance. - ANSWER: Atrial flutter
This rhythm occurs when multiple ectopic foci are firing almost continuously and
produces an irregular baseline with no visible p waves and irregular QRS complexes -
ANSWER: Atrial fibrillation
Cardiac infarction is diagnosed by - ANSWER: significant q waves
Which heart block is identified by prolonged P-R interval? - ANSWER: 1st degree AV
block
Which heart block is characterized by increasingly longer PR intervals until a missing
QRS - ANSWER: 2nd degree AV block Mobitz 1 (Wenchebach)
longer, longer, longer, drop, then you got a wenchebach
Which heart block is characterized by missing QRS - ANSWER: 2nd degree AV block
Mobitz II
If some P's don't get through, you have a mobitz type 2
Which Heart block is characterized by an atrial rate greater than 60, and a ventricular
rate less than 40? The PR interval cannot be determined and the QRS is widened -
ANSWER: 3rd degree AV block