RT 151 test #1 Word Scramble

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Question	Answer
A converging duct	decreases pressure for an increase in velocity
As a general rule, you should not add ?? feet of extension tube to an oxygen concentrator	50 feet
When troubleshooting a pulse demand oxygen device, you should check	the oxygen cylinder for sufficent pressure, the battery voltage, the battery instilation, the cannula for kinks or obstructions
A HAFOE (high air flow with oxygen enrichment) mask is set at 40% and the oxygen flowmeter is running at 6 L/min. what is the total flow to the pt.	24L/min
Hyperbaric oxygen therapy	increases the Pa02
To monitor correctness of respiratory care plans, u should asses	care plan auditors and case study exercises
Respiratory care plans can be monitored by	Experienced care plan auidtors, computerized case studies, pt. scenarios, "gold standard" assesments
According to American Association for Respiratory Care Clinical Practice Guideline: Humidification durning meachanical ventilation, a humidifier chosen should	provide body humidity and provide a temp. of at least 30 degrees celsius
Relative humidity output from most disposable bubble humidifiers range from	33% to 40% relative humidity
A HME is placed	between the pt.s airway and the circuit
When vital signs , Inc., Hi-Fi large-volume nebulizer with the oxygene flowmeter on the "flush" (maximum setting) is used, flow through the jet is	40 L/min
What Babington nebulizers is intended for use with a tent	Maxi-cool or Solosphere
What is a potential risk to pt.s recieving respiratory care	movement or ambulation, electrical shock, and fire hazards
What parameters should be monitored durning ambulation	skin color, Breathing rate and effort, and level of consciousness
What has played a major role in increasing cost in health care	compensatory justice
The liquid that has the lowest surface tension	ethyl alcohol
What is the absolute humidity (water vapor content) of saturated gas at normal body tempature, 37*C	43.8 mg/L
One atmosphere (1 atm) of pressure is equivalent to what	29.9 inches Hg, 14.7lb/in 2, 1034.0g/cm 2, 760.0mmHg
What conditions tend to cause laminar flow to become turbulent (producing a high Reynold's number)	high linear gas velocity, high gas density, large tube diameter
What would be an electrochemical princaple of operation used by an oxygen analyzer	galvanic
six or more quality-control results on the same side of the mean is termed	a shift
What factors contribute to maintaining a patent ductus arteriosus during fetal life	low Pa02and presence of prostaglandins
What % of right ventricular output is circulated through the fetal lungs	10%
Infants are more suscepticle to profound hypoexmia than are adults	true
What external landmark can be used to show the highest point of the dome of the right hemidiaphragm reaches in a healthy individual	eight rib posteriorly
Limited, short-term spontaneous ventilation is possible in a pt. with a paralyzed diaphram	true
What is the name of the negitive feedback reflex associated with the termination of inspiration	Hering-Breuer
What helps compramise the defense system of the nose	impaction of particulate foreign matter on the nasal mucosa
Why is pulmonary surfactant such an import biologic substance	it promotes lung stability
What is the equation you would use to compute total peripheral resistance (CO = Cardiac Output)	(mean aortic pressure - right atrial pressure)/CO
The cardiovascular system regulates perfusion mainly by altering what	capacity and resistance of blood vessels
What is approx. normal resting CO for a healthy adult	5000 ml/min
What are the major effects of peripheral chemoreceptor stimulation	Vasoconstriction and increased heart rate
What is the effect of surface tension forces in the air-filled lung	it increases the elastic recoil of the lung (promoting collapse) and it makes the lung harder to inflate than if it were filled w/ fluid
For a given transpulmonary pressure gradient and inflation time, what lung unit would exhibit the greatest change in volume	a unit with normal resistance and normal compliance
How can the body effectively compensate for an increased V Dphy?	increased tidal volume
According to Fick's princaple, if oxygen consumption remains constant, an increase in C/O will mainfest itself as which of the following	decrease in the Ca02 - Cv02
What are potential causes of hypoxia	decrease in arterial P02, decrease in available Hb, and Decrease in C/O
A pt. with a normal Pa02 and C/O is exhibiting signs and symptoms of tissue hypoxia. What is the most likely cause	hemoglobin deficiency
Carbon dioxide is most commonly elevated due to signifigant pulmonary disease that result in small tidal volumes	true
What acts as the "first-line" or immediate defense against the accumulation of H+ ions	BLOOD buffer system
In regard to acid excretion by the body...	if one system fails the other can help compensate, the kidneys can only remove fixed acids, the lungs can quickly remove acid
What explains the lack of an increased anion gap seen in metabolic acidosis caused by HC03 loss	For each HCO3 ion lost, a Cl ion is reabsorbed by the kidney
What stimulates the Hering-Breuer inflation reflex	the stretch of receptors at high lung volumes
The S2 (second heart sound) is created primarily by	closure of semilunar valves
What is implied by an abnormal prolonged PR interval	atrioventricular block
What is suggested by inverted T waves on the ECG	myocardial ischemia
An occasional premature ventricular complex (PVC) is not of major concern	true
What pt.s would transcutaneous blood gas monitoring most likely provide inaccurate or erroneous results	pt.s in hypovolemic shock
To what should all spirometric values obtained under ambient conditions be converted	body tempature, ambient pressure, saturated (BTPS)
What may be the drug of choice for managing atopic asthma in children	cromolyn
What medications would likely be the least often ordered durning the emergency department management of an acute asthma attack	methylxanthines
Most likely to cause exercise-induced asthma	swimming indoors
What is the available formulation strength for flunisolide (AeroBid) by meter-dose inhaler	250mm/puff
Zileuton belongs to what category	leukotriene modifiers
Truths about the use of Ribavirin	it is used as an antiviral agent against respiratory syncytial virus, adverse effects include skin rash, conjunctivitis, and eyelid erythema and it can occlude endotracheal tube abd ventilator exhalation valves
Nebulizer used to nebulize iloprost	I-neb
What is the standard size for endotracheal or tracheostomy tube adapters	15 mm external diameter
What is the purpose of the additional side port (murphy eye) on most modern endotracheal tubes	ensure gas flow if the main port is blocked
What is the purpose of the pilot balloon on an endotracheal or a tracheostomy tube	monitor cuff staus and pressure
A pt. is being evaluated for tracheal damage sustained while having undergone prolonged tracheostomy intubation approx. 3 months earlier. volume loop-demonstrates fixed obstrutive pattern	tracheal stenosis
During fiberoptic bronchoscopy, a pt.s Sp02 drops from 91% to 87%. What is the appropriate action	Give oxygen through scope's open channel or increase the cannula or mask oxygen flow
What inspired conditions should be maintained when delivering medical gases to the nose or mouth	50% relative humidity at 20C to 22C
What types of humidifiers are used in clinical practice	heat-moisture exchange, passover humidifer and bubble humidifier
What is the goal of using an unheated bubble humidifier with oronasal oxygen delivery systems	Raise the humidity of the gas to ambient levels
Before inspiration and actuation of a metered-dose inhaler, the pt. should exhale to	functional residual capacity
Advantages of DPI (dry powder inhaler)	low relative cost, no propellants req., no hand- breathcoordination necessary
A semiconscious pt. w/ inadequate spontaneous ventilation requires aerosol drug administration. what approach would you recommend	SVN w/ delivery by IPPB
What is the normal recommended dosage for continuous bronchodilator therapy (CBT)	15.0 mg/hr
Under what conditions will the guage pressure of a cylinder of N20 accurately represents its contents	When the liquid of the cylinder has completely vaporized and when the ambient temp. exceeds the critical temp.
The guage on an E cylinder of 02 reads 800 psig. about how long would the contents of this cylinder last, until completely empty, at a flow of 3 L/min	1 hour 15 minutes
The NFPA standard for bulk liquid 02 systems requires that the reserve supply be which of the following	equal to the average gas use of 1 day
When minimal fluctuations in pressure and flow are critical factors, what pressure-reducing valves would be the best choice	multiple-stage pressure-reducing valve
What are the primary organ systems affected by 02 toxcity	central nervous system and lungs
What is the upper limit of 02 concentrations available through tents	40% to 50%
Appropriate inital settings for intermitten positive-pressure breathing given to a new pt	sensitivity -1 to -2 cm H20; pressure 10 to 15 cm H20; moderate flow
Primary objectives for postural drainage include	normalize functional residual capacity, help mobilize secretions, improve V/Q
Advantages of the flutter valve over other bronchial hygiene methods include	good pt. acceptance, full portability, independent use
Contraindications for the use of noninvasive positive-pressure ventilation (NPPV)	nonsupportive family, lack of finical resources, copious amounts of secretions, uncooperative behavior on the part of the pt.
Teaching physical skills to pt.s is learning in what domain	psychomotor

Created by: stephtaylor