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CT Review Exam 1

Patient Care

QuestionAnswer
An average range for activated PTT is? a. 10-12 seconds b. 17-21 seconds c. 25-35 seconds d. 43-55 seconds c. 25-35 seconds
Which of the following is the correct angle of insertion for placing a butterfly needle into a vein for intravenous administration of a contrast agent? a. 5 degrees b. 15 degrees c. 45 degrees d. 60 degrees b. 15 degrees
A total volume of 125 mL of an iodinated contrast agent is administered intravenously via automatic injector in 50 seconds. The flow rate for this injection is? a. 0.75 mL/sec b. 1.25 mL/sec c. 1.75 mL/sec d. 2.5 mL/sec 2.5 mL/sec
The acronym CTDI is used to describe what? a. specialized CT imaging technique used to measure bone mineral density b. quality control test that measures the accuracy of the laser lighting system c. the radiation dose to the patient during a CT scan c. the radiation dose to the patient during a CT scan.
While obtaining thorough history from a patient before a intravenous injection of iodinated contrast what should be included? a. any prior allergic reactions to contrast media b. presence of HIV or hepatitis infection c. history of asthma a and c
Which of the following factors may affect a patients calculated glomerular filtration rate (GFR)? a. age b. sex c. race a, b and c
Which of the following intravenous contrast agent administration methods provides the greatest overall plasma iodine concentration? a. drip infusion b. bolus technique c. biphasic technique d. CT portography b. bolus technique
a patient in shock may exhibit which of the following symptoms? a. tachycardia b. rapid, shallow breathing c. cyanosis a, b and c
The drug SOLU-CORTEF may be classified as which of the following? a. anticholinergic b. bronchodilator c. antihistamine d. corticosteroid d. corticosteroid
Which of the following technical factors has a direct effect on patient dose? a. matrix size b. algorithm c. mAs d. window level c. mAs
Which of the following is a non-ionic contrast material? a. iodamide b. iothalamate c. iohexol d. diatrizoate c. iohexol (omnipaque)
Which of the following terms is used to describe a patient who is having difficulty breathing? a. dyslexia b. dyspnea c. dysphagia d. dysphasia b. dyspnea
Which of the following devices is used to measure the patient dose from CT examination? a Geiger counter b. proportional counter c. ionization chamber d. film badge. c. ionization chamber
Which of the following describes the situation in which an assumption is made that an unconscious or otherwise physically unable pt consents to medical treatment? a. informed consent b. witnessed consent c. pt proxy d. implied consent d. implied consent
Complete cardiac diastole corresponds to which portion of the cardiac cycle on an electrocardiogram (ECG)? a. P wave b. QRS complex c. Alpha wave d. T wave d. T wave
During CT arthrography, iodinated contrast media is injected directly into the? a. joint space b. intrathecal space c. subarachnoid space d. venous blood stream a joint space
Which of the following is considered one the iso-osmolar contrast media (IOCM)? a. iodixanol b. iopamidol c. iohexol d. ioversol a.iodixanol
A common site for the IV administration of iodinated contrast media is the anterior recess of the elbow, otherwise known as? a. brachial fossa b. olecranon fossa c. retro-ulnar space d. antecubital space d. antecubital space
the potentially serious decline in renal function following the IV administration of contrast material is called? a. anaphylaxis b. bronchospasm c. contrast-included nephrotoxicity (CIN) d. urticaria c. contrast-induced nephrotoxicity
The quantity of absorbed rad dose on the radio sensitivity of particular tissue is called? a. reduction in required contrast agent dose b. reduction in the incidence of CIN c. reduction of streaking artifact from dense contrast agent in the vasculature a, b and c
Which of the following medications may be administered to dilate the coronary vasculature prior to a cardiac CT exam? a. sublingual nitroglycerine b. a b-adrenergic receptor blocking agent c. atropine d. albuterol a. sublingual nitroglycerine
A normal ranger for diastolic blood pressure in an adult is? a. 40-60 mm Hg b. 60-90 mm Hg c. 80-120 mm Hg d. 95-140 mm Hg b. 60-90 mm Hg
Which of the following methods may be employed to reduce the radiation dose to the pediatric pt undergoing CT? a. reduce mA b. limit phases of acquisition c. increase pitch a, b and c
Radiation exposure and its potentially harmful effects have a relationship that is termed _______ in nature. a. stochastic b. nonstochastic c. negligible d. somatic a. stochastic
Which of the following types of isolation techniques protects against infection transmitted through fecal material? a. acid-fast bacillus isolation b. contract isolation c. enteric precautions d. drainage-secretion precautions c. enteric precautions
Which of the following is considered one of the ionic radiopaque contrast media (RCM)? a. iohexol b. iothalamate meglumine c. iopamidol d. ioversol b. iothalamate meglumine
The radiation does index calculation that takes into account the variations in absorption across the FOV due to beam hardening is termed: a. CTDIw b. CTDI 100 c. CTDI vol d. MSAD a. CTDIw
Direct contraindications to the administration of iodinated contrast material include: a. prior life-threatening reaction to iodinated contrast material b. multiple myeloma c. diabetes a only
Which of the following units is used is used to express the total pt dose from a helically acquired CT examination? a. roentgens (R) b. curies (Ci) c. R-cm (roentgens per centimeter) d. mGy-cm (milligrays per centimeter) d. mGy-cm
Created by: MelissaAB
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