ACTUAL Exam Questions and CORRECT
Answers
what is blood pressure? - CORRECT ANSWER a measure of the force exerted by blood on
the arterial walls during contraction and relaxation of the heart
what is diastolic pressure? - CORRECT ANSWER the pressure exerted on the arterial vessels
by the blood when the heart is relaxed
what is the peak pressure present during contraction of the heart? - CORRECT
ANSWER systolic pressure
what is blood pressure readings obtained with? - CORRECT ANSWER sphygmomanometer
and stethoscope
what are the two common type of sphymomanometers? - CORRECT ANSWER mercury and
aneroid
what does the first sound of blood flow correspond to? - CORRECT ANSWER the values
(numbers) observed on the manometer and indicates the systolic pressure
what is the turbulent sound of blood flow through the arteries during blood pressure
measurement called? - CORRECT ANSWER korotkoff sounds
what is blood pressure measurement? - CORRECT ANSWER millimeters of mercury
blood pressure may be measured and displayed through a? - CORRECT ANSWER cardiac or
vital signs monitor
,what is the normal blood pressure in a healthy adult? (systolic) - CORRECT
ANSWER systolic pressure of less than 120 mm Hg
what is the normal blood pressure in a healthy adult? (diastolic) - CORRECT ANSWER less
than 80 mm Hg
what is hypertension? - CORRECT ANSWER Blood pressure greater than 140/90
what is hypotension? - CORRECT ANSWER low blood pressure (less than 90/60)
what is the oxygen flowmeter? - CORRECT ANSWER a valve that permits flow safe for
patient use and serves as the connection between the oxygen-delivery device and the gas source
what is included with a portable cylinder? - CORRECT ANSWER a regulator consisting of a
flowmeter and pressure manometer
what is a pulsed dose device? - CORRECT ANSWER it delivers a fixed volume of oxygen
supply during breathing
what is the most common device to deliver low concentrations of oxygen? - CORRECT
ANSWER nasal cannula
what does the nasal cannula do? - CORRECT ANSWER delivers oxygen through short
prongs inserted into the nares
what is the flow range of the nasal cannula? - CORRECT ANSWER 1-6 L/min, range is 24-
40%
what can provide an effective way to deliver oxygen and are effective when a nasal cannula
cannot be used? - CORRECT ANSWER masks
, what requires oxygen flow rates greater than 6 L/min to prevent an accumulation of carbon
dioxide? - CORRECT ANSWER simple oxygen mask (35% to 50%)
what masks have a bag attached to them known as reservoirs that fill a portion of a patients
exhaled gas? - CORRECT ANSWER partial rebreathing oxygen mask (higher than nasal
cannula or simple mask)
how much does the partial rebreather mask deliver? - CORRECT ANSWER 40-70%
what masks have one-way valves over the small holes on the sides of the mask? - CORRECT
ANSWER nonrebreathing oxygen mask
what are these valves designed to do? - CORRECT ANSWER minimize the dilution ox
oxygen with room air
how much FIO2 can be achieved with the non-rebreathing mask? - CORRECT ANSWER 60-
80%
what masks are needed for patients who have high oxygen needs for relatively short periods of
time? - CORRECT ANSWER partial rebreathing mask and nonrebreathing mask
what are high flow devices that can generate an aerosol mist with precise oxygen concentrations?
- CORRECT ANSWER large volume nebulizer
when is a aerosol mist desired? - CORRECT ANSWER when the patient's inspire gases
bypass the normal humidification function of the nasal passages and upper airways
what is the nebulizer connected to? - CORRECT ANSWER an oxygen flowmeter at a flow
rate of 8 L/min (28% to 100%)