MRSO Mock Test 1 - Questions with 100% Correct Answers

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MRSO Mock Test 1 - Questions with 100% Correct Answers Which of the following describes when a non-ferrous, electrically conductive object is repulsed by a static magnetic field? A. Fourier Transfom... ation B. Larmor equation C. Lenz force D. Ohms law What is the purpose of resonance? A. Resonance is not used in MRI B. To tilt the nuclei of interest away from B0 C. To slow down the processional frequency or nuclei D. To align nuclei with B0 Induction of electrical current in our patient from changing magnetic fields can be described by which of the following? A. Ohms Law B. Faradays Law C. Fourier equation D. Larmor equation The near field effects of the RF energy can cause what kind of issue? A. Proximity Burning B. Resonant burning C. Reflective burning D. Missile effect Which of the following is true of a crime in legal cases? A. It involves damages to a person or a persons property B. It involves damages to themselves C. If involves breaking a law D. It involves an unintentional event that involves an emotional stress to another person What are the patient limits for the time varying gradient coils? A. 10 T/s B. 35 T/s C. To the comfort of the patient D. To the point a patient has a seizure An Ice pack is used as what to reduce heating in a patient is called what? A. Heat sink B. Insulation C. Non ferrous material D. Anti conductor The gradient coils are responsible for which of the following? Select all that apply. A. Significant heating B. Magnetohydrodynamic effect C. Noise D. Rotational force E. Translational force F. Peripheral nerve stimulation What is the name for the direction of the vector of the static magnetic field? A. B0 B. B1 C. Inverse field D. Equilibrium The MRI unit is found in which of the following? A. Zone 2 B. Zone 4 C. Zone 3 D. Zone 1 What is hypothermia? A. When the blood pressure decreases dramatically B. When the body temperature gets dangerously warm C. When the body temps get dangerously cold D. When the blood pressure increases dramatically Where will peripheral nerve stimulation be the strongest? A. Isocenter B. Outside the gantry near the 5 gauss line C. Further away from isocenter in the gantry D. At the level of the table when its advanced Which of the following are considerations for a quench vent pathway? A. All of the choices B. Restrict access to quench vent area C. Use signage to indicate quench vent outside D. Have a quench vent inspected on a consistent basis Nephrogenic Systemic Fibrosis is caused by what? A. When a gadolinium ion breaks free from the ligand and remains in the body. B. When the patient is allergic to gadolinium contrast media C. When the gadolinium ion is excreted from the body quickly D. When the gadolinium ion is excreted by the liver Which of the following is true of a tort in a legal case? A. It involves damages to themselves B. It involves an unintentional event that involves an emotional stress to another person C. It involves damages to a person or a person’s property D. It involves breaking a law What type of MRI unit uses a cryogen? A. Permanent B. All of the choices C. Superconducting D. Resistive Which of the following describes the total dose of energy that a tissue receives during an entire exam? A. Overall concentration dose B. Specific Energy dose C. Total voltage absorbed D. Specific Absorption Rate Which of the following is an ASTM MR labeling option for an object in the MR environment? A. MR compatible B. MR safe C. MR conditional D. MR unsafe An area that is outside of any MR area and is accessible to the general public is called what? A. Zone 2 B. Zone 4 C. Zone 1 D. Zone 3 The speed that the gradient coils can turn on and off is called what? A. Maximum gradient peak B. Spatial gradient C. The slew rate D. The rise time The FDA limits SAR in the head to what? A. 3.2 W/kg for 10 min B. 4 W/kg for 15 min C. 8 W/kg for 20 min D. 10 W/kg for 15 min The B1 field is found where? A. 180 degrees to the B0 B. In the same direction as the B0 C. Varies from scan to scan D. 90 degrees to the B0 Emesis after a contrast reaction is considered what? A. An allergic reaction to contrast media B. A non- allergic reaction to contrast media C. None of the choices D. Anaphylaxis Which of the following require the minimal MR safety training? A. Level 2 MR personnel B. Level 1 MR personnel C. The patient D. Non MR personnel Anthrogenic gadolinium can be described as what? A. The influence of gadolinium on patients with renal insufficiency B. When the accumulation of gadolinium occurs in the body C. When gadolinium is found in the water supply D. When the retention of gadolinium in specific tissues is present [Show More]

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