ARRT CT: Patient Care || QUESTIONS WITH CORRECT SOLUTIONS!!
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Course
ARRT CT
Institution
ARRT CT
When can patient consent be deemed "informed?" correct answers Only when the procedure, including risks, benefits, and alternatives, are clearly explained in a language the patient fully comprehends
Who can sign the consent form for a minor? correct answers Parent or legal guardian
What type ...
ARRT CT: Patient Care || QUESTIONS WITH
CORRECT SOLUTIONS!!
When can patient consent be deemed "informed?" correct answers Only when the procedure,
including risks, benefits, and alternatives, are clearly explained in a language the patient fully
comprehends
Who can sign the consent form for a minor? correct answers Parent or legal guardian
What type of consent occurs when a patient is in need of immediate medical services, but is
unconscious or is physically unable to consent to treatment. In this case, services are rendered
with the assumption that the patient would consent if able correct answers Implied consent
What type of consent describes the patient has the right to know and participate in his/her
own healthcare? correct answers Informed consent
What are the 4 types of consent? correct answers 1) informed consent
2) implied consent - by action
3) expressed consent - verbal
4) written consent
Before contrast agent administration, what should you discuss to the patient? correct answers
Potential physical effects, such as warm sensation and metallic taste
What works to reduce motion and is particularly important during CT imaging of the chest
and abdomen? correct answers Breath-hold technique
- cessation of breathing
What is one of the most important responsibilities of the CT technologist? correct answers
Obtaining an accurate and pertinent patient history
What can greatly assist the radiologist in the diagnostic process? correct answers Proper
documentation of the patient's recent procedures, surgeries, symptoms, possible trauma, and
specific areas of pain or discomfort
The measurement of basic body functions to monitor critical information regarding the
patient's physical condition correct answers Vital sign assessment
What are the 4 vital signs and their ranges? correct answers 1) temperature - 97.7 to 99.5
degrees Fahrenheit
2) pulse - 60 to 100 beats per min (adult), 70 to 120 beats per min (children)
3) blood pressure - 120/80 mm Hg (systolic/diastolic)
4) respirations - 12 to 20 (adult), 20 to 30 (children)
What indicates the pressure within arteries during cardiac contraction? correct answers
Systolic blood pressure
What is measured during relaxation of the heart? correct answers Diastolic pressure
, What is an electronic device used to measure pulse and respiratory status? It is placed on a
patient's finger, toe, or ear lobe. correct answers Pulse oximeter
What is the normal level of blood oxygen levels measured by a pulse oximeter? correct
answers 95 to 100%
What refers to the series of blood flow related events that occur from the beginning of one
heartbeat to that of the next? correct answers Cardiac cycle
1) What refers to the relaxation of the heart muscle?
2) What refers to the contraction of the heart muscle? correct answers 1) diastole
2) systole
What is the graphic representation of the electrical activity of the heart? correct answers
Electrocardiogram (EKG)
Atrial systole, contraction of the left and right atrium, corresponds to the onset of what wave
on the EKG? correct answers P wave
Ventricular systole, contraction of the left and right ventricles, corresponds to what wave on
the EKG? correct answers QRS wave
Complete cardiac diastole, period of relaxation after heart contraction, corresponds to what
wave on the EKG? correct answers T wave
Cardiac CT images are typically reconstructed from data acquired during what phase on the
cardiac cycle? correct answers Diastolic phase
What may be used to reduce a patient's heart rate? correct answers Beta blockers (beta
adrenergic receptor blocking agents)
What is the preferred rate for optimal imaging on most multislice CT (MSCT) systems?
correct answers 65 bpm
If not contraindicated, what may be administered just before cardiac MSCT study to cause
dilation of the coronary vessels, improving their visualization? correct answers Sublingual
nitroglycerine
What laboratory values are used to indicate renal function? correct answers Blood urea
nitrogen (BUN) and creatinine level
What is the normal range for BUN and creatinine level? correct answers BUN: 7-25 mg/dL
Creatinine: 0.5-1.5 mg/dL
What is the BUN/creatinine ratio? correct answers 6-22:1
What are some examples that may cause high levels of BUN and low levels of BUN? correct
answers High levels: CHF, GI bleed, hypovolemia, MI, shock, kidney disease
Low value: liver failure, low protein diet, malnutrition, overhydration
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