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CT Patient Care

Study Question

QuestionAnswer
What do we call the state laws that have been developed to govern communication between health care providers and patients? informed consent laws
When is the only time that a patient’s consent may be presumed rather than obtained? in an emergency situation
Why might it be important to ask the patient if they have had had radiation therapy? because scarring caused by radiation therapy mimics lung disease.
What are the two types of lab results important to CT? 1. renal function 2. blood's ability to coagulate
What are the two tests that determine renal function? BUN and creatinine
What does BUN provide? it provides information about the kidney’s ability to remove impurities from the blood.
What does an elevated BUN indicate the possibility of? renal disease
What is the normal/acceptable range for BUN values? 5 to 25 mg/dl
What is the normal range for creatinine? .6 to 1.7 mg/dl
What are the three tests that determine the bloods ability to coagulate? 1. prothrombin time (PT) 2. partial thromboplastin time (PTT) 3. platelet count
What two tests asses the series of chemical interactions required to form a blood clot? PT and PTT
What are the typically accepted values for PT? 10 to 14 seconds
What are the typically accepted values for PTT? 20 to 40 seconds
What are the typically accepted values for platelet count? 150,000/mm³ to 400,000/mm³
When dealing with strictly x-rays, what is the most common unit for measuring absorbed radiation dosage? rad
rem and Sievert are a measurement of what? effective dose or dose equivalent
What is the average annual radiation dose equivalent from radon? 2 rem
How is the actual dose from multiple adjacent slices measured? CTDI
The ____ is an indicator of radiation dose which includes the radiation located within the intended slice thickness as well as that from the penumbra. CTDI
The ____ assumes that consecutive slices are contiguous. CTDI
In order to account for gaps or overlaps between adjacent slices there is another indicator of dose called the ____. MSAD
Manufacturers claim that their dose-optimizing software which automatically varies the mA allows for dose reductions ranging from ____% to ____%. 15% to 55%
If a patient is sedated, what type of monitoring device is recommended? pulse oximeter
What results from a lack of blood flow to the brain? stroke
What results from insufficient blood flow to the tissues and vital organs? shock
What type of shock occurs from IV contrast injection? anaphylactic shock (sudden massive vasodilation)
How far can droplets travel? up to 3 feet
Created by: sspatel