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Flashcards: Chapter 13
Which of the following terms describes the percentage of blood pumped out of a filled ventricle with each heartbeat?
ejection fraction
Which of the following studies combines computed tomography with isotope scanning to highlight chemical or metabolic activity?
PET
Which study uses frequencies of 1 to 10 million Hertz through human tissue for diagnostic purposes?
ultrasonography
All of the following studies expose the patient to ionizing radiation EXCEPT:
MRI scan
Which of the following is a dye used for identification of bacteria?
crystal violet
What is a common component of many contrast media that may be a contraindication for use in allergic patients?
iodine
Which diagnostic method requires use of an image intensifier?
fluoroscopy
For which of the following diagnoses would a myelogram MOST likely be ordered?
nerve root compression
An AP view on a radiograph is taken:
front to back
Cholangiography is the diagnostic study that images which anatomical structure?
common bile duct
Which of the following devices would be used within the sterile field to determine the patency of an arterial anastomosis?
Doppler probe
What is another term used for diagnostic isotope scanning?
nuclear medicine
A neurologist might order an EEG for a patient with which suspected diagnosis?
seizure disorder
Which of the following is (are) stained in a Gram stain test?
bacteria
Thoracentesis is removal of fluid from the:
pleural space
Which of the following is a display and recording of the electrical activity of skeletal muscle?
EMG
Which study assists a surgeon with determining the MOST effective antibiotic therapy for treatment of an SSI?
culture and sensitivity
Which artery is MOST commonly accessed with the Seldinger technique during cardiac catheterization?
femoral
Rapid serial film changers and pressure injectors are used in which diagnostic imaging study?
angiogram
Auscultation involves use of a(n):
stethoscope
Which of the following is a flexible, atraumatic device used to facilitate proper placement of catheters into lumens of vessels, ducts, or ureters?
J-guidewire
A corneal abrasion would be assessed using a(n):
ophthalmoscope
Intraoperative fluoroscopy for cholangiography would require which of the following?
radiolucent OR table
Contrast media are routinely introduced:
intravenously
Roentgenography, named for the German physicist who discovered it, is better known today as:
radiography
Hypaque, Cystografin, and Renografin are:
contrast media
When a vessel cannot be accessed percutaneously for angiography, how else could it be done?
cut-down
For which anatomic area is ultrasonography ineffective?
lungs
Which test involves a lumbar puncture for collection and analysis of CSF?
spinal tap
A type of organism that dies quickly when exposed to air is called:
anaerobic
Which of the following is an example of an isotope scan that may show “hot spots” indicating possible pathology?
bone scan
In a Gram stain study, the bacteria that retains the blue coloration following staining, alcohol rinse, and restaining is:
gram positive
B-cells and T-cells are types of:
lymphocytes
In normal blood gas ranges, arterial oxygen saturation should be at or near what percentage range of capacity?
96% to 100%
What condition of excess fluid is analyzed by thoracentesis?
pleural effusion
What is the name of the 24-hour monitoring device for cardiac dysrhythmias?
Holter monitor
What is the symptom that a patient with myocardial ischemia would experience?
angina
Which wave of the cardiac cycle in an electrocardiogram indicates the ventricular repolarization phase?
T-wave
A deep vein thrombosis can be diagnosed by which diagnostic study?
phleborheography
Which noninvasive study assesses the amount of carbon dioxide in the arterial system of a patient on mechanical ventilation?
capnography
EEG leads may be placed directly on the surface of the brain during craniotomy.
True
MRI scans require shielding of thyroid and gonads because of ionizing radiation emissions.
False
Oxygen saturation is higher in the venous system than in the arterial system, making blood appear darker red.
False
Basophils, eosinophils, and neutrophils are types of white blood cells.
True
Hemoglobin is measured in grams per deciliter, and hematocrit is measured in percentages.
True
Vascular imaging technique that removes the background structures from view
Digital subtraction
Analysis of voided sample by either catheterization or clean catch
Urinalysis
Difference of optical density in a radiograph that results from a difference in radiolucency or penetrability
Contrast
Real-time radiographic imaging that allows the actions of joints or organs to be viewed directly
Fluoroscopy
Part of a physical examination in which touch is used externally or internally to determine size, shape, or abnormality
Palpation
Standard unit of measurement for the absorption of ionizing energy
Rad
Objective, observable evidence or manifestations of a pathological condition
Signs
Type of urography in which contrast media is injected directly into the bladder
Retrograde
Specialized radiographic machine that produces computer-generated images of the body in “slices”
CAT scan
Noninvasive device that measures optical density of blood; used on fingers, toes, or earlobes
Pulse oximeter