- Which of the following is a parenteral route medication administration?
Your answer:
intramuscular
transdermal
oral
sublingual
- The preparation for a contrast-enhansed CT examof a patient with prior allergic reaction to iodinated contrast media may include?
Your answer:
increased fluids for 24 hours before the examination
refraining from urination for 2 hours before the examination
premedication with steroids and antihistamines
administration of a negative contrast agent
- A patient in shock may exhibit which of the following symptoms?
Your answer:
tachycardia
rapid, shallow breathing
cyanosis
all fo the above
- Which of the following infection control techniques is required at the site of an intravenous injection of iodinated contrast media?
Your answer:
contact isolation
enteric precautions
surgical asepsis
medical asepsis
- A common site for the intravenous injection of iodinated contrast media is the?
Your answer:
cephalic vein
antecubital vein
basilic vein
all the above
- Prior to an intravenous injection of iodinated contrast material, the patient should be questioned regarding? 1. renal function 2. allergic history 3. cardiac history
Your answer:
1 only
3 only
2 only
1, 2, and 3
- Used in determining the biologic effect of iodinated contrast media, the term _____________ refers to the number of ions formed when a substance dissociates in solution.
Your answer:
osmolality
concentration
iodination
solubility
- Which of the following laboratory values can be used to evaluate the renal function of a patient?
Your answer:
blood urea nitrogen (BUN)
partial thromboplastin time
creatinine
both a and c
- Which of the following would be best suited for intravenous injection of contrast material with a power injector?
Your answer:
a central venus line
an angiocatheter
a butterfly needle
a 23-gauge spinal needle
- A(n) ____________ contrast material may be discribed as one that does not dissociate into charged particles in solution.
Your answer:
osmolar
ionic
neutral
non-ionic
- The lumen of needles used for the injection of contrast media varies in diameter. The unit used to discribe this diameter is called?
Your answer:
gauge
length
pounds per square inch (psi)
cubic centimeter (cc)
- Direct contraindications to iodinated contrast material administration include? 1. prior life-threatening reation to iodinated contrast material 2. multiple myeloma 3. allergies to penicillin
Your answer:
1 only
1 and 2 only
2 and 3 only
1, 2, and 3
- Advantages of power injectors over the manual bolus method of intravenus contrast administration include? 1. increase tissue enhancement due to faster injection times. 2. uniform contrast administration over the entire length of the study. 3. decreased volume of contrast administered.
Your answer:
2 and 3 only
1 and 2 only
1 only
3 only
- The average range for normal adult blood urea nitrogen (BUN) levels is approximatly
Your answer:
1-4 mg/dL
23-30 mg/dL
5-20 mg/dL
45-60 mg/dL
- Which of the following correctly states the difference between ionic and non-ionic iodinated contrast material?
Your answer:
Non-ionic contrast media have a higher osmoality than ionic media.
Ionic contrast media contain iodine, whereas non-ionic contrast media do not.
Non-ionic contrast media have a lower osmoality than ionic media.
Ionic contrast media involve a lower incidence of adverse reations than non-ionic contrast media.
- During which of the following proceedures is the patient required to give informed consent?
Your answer:
radiation planning study of the prostate
abdomen scan with intravenous contrast
three-dimentsional reconstruction of the hip
noncontrast chest examination
- Which of the following are included as basic types of iodinated contrast media? 1. iothalamate 2. diatrizoate 3. metrizoate
Your answer:
3 only
1 and 3 only
1, 2, and 3
2 only
- Which of the following terms is used to discribe the intravenous injection of medication or contrast agent in one complete dose over a short period of time?
Your answer:
Infuse-A-Port
intravenous drip
infusion
bolus
- An intrathecal injection before a CT examination of the lumbar spineplaces iodinated contrast material directly into the?
Your answer:
subdural space
subarachnoid space
dura mater
vertebral foramen
- Accurate demonstration of _____________________ would mostlikely require the intravenous injection of an iodinated contrast medium during a CT study of the chest.
Your answer:
pneumonia
mediastinal lymphadenopathy
a pulmonary nodule
bronchiectasis
- Dynamic CT studies involve rapid bolus contrast administration followed by immediate data acquisition with which of the following parameter characteristics.
Your answer:
detail algorithm
rapidly scanned sections with short interscan delays
long interscan delays
noncontiguous sections with wide interspaces
- Which of the following contrast media may be used DURING the CT evaluation of the gastrointestinal tract? 1. diatrizoate meglumine (Gastrografin) 2. effervescent agents 3. iopamidol (Isovue)
Your answer:
2 and 3 only
1, 2, and 3
1 and 3 only
1 only
- Which of the following contrast administration techniques should be used for a general CT survey of the abdomen? 1. 400-600 mL of oral contrast administered 45-90 minutes before examination 2. 300 mL of oral contrast administered immediatly before the examination 3. a 700 mL-900 mL enema given immediatly before examination
Your answer:
1, 2, and 3
1 only
1 and 3 only
1 and 2 only
- The purpose of intravenous contrast administration during a CT study is to? 1. increase the contrast of adjacent structures 2. increase examination cost to the patient 3. increase beam attenuation of enhansed structures
Your answer:
2 and 3 only
3 only
1 only
1 and 3 only
- The excreation half-time of intravenous iodinated contrast media in a patient with normal renal function is between?
Your answer:
1 and 2 days
1 and 2 hours
18 and 24 hours
5 and 7 days
- A common formula used to calculate the dosage of intravenous iodinated contrast material in a pediatric patient is?
Your answer:
5 mL/lb body weight
3 mg/kg body weight
1 mL/lb body weight
100 mL in patients weighing over 10lbs
- During which of the following phases of intravenus contrast administration should CT images of the liver be aquired? 1. bolus phase 2. nonequilibrium phase 3. equilibrium phase
Your answer:
1, 2, and 3
2 only
1 only
1 and 2 only
- During a CT examination of the abdomen, intravenus contrast is indicated and is administrated with the aid of an automatic injector. Which of the following ranges of flow rates should be used?
Your answer:
4.0-6.0 mL/sec
0.2-1.0 mL/sec
1.0-3.0 mL/sec
7.0-10.0 mL/sec
- An enema is indicated before a CT examination of the pelvis to administer positive contrast material into the large bowel. Which of the following doses is suffcient to opacify the rectosigmoid region?
Your answer:
150-250 mL
300-500 mL
500-750 mL
900-1100 mL
- Which of the following sets of values would be considered normal levels for creatinine and blood urea nitrogen respectively?
Your answer:
5.2 mg/dL, 12 mg/dL
3.1 mg/dL, 1.2 mg/dL
1.2 mg/dL, 14 mg/dL
0.7 mg/dL, 29 mg/dL