Heat can tr - Study guides, Class notes & Summaries

Purpose of RF (B1) field - excite hydrogen protons RF energy is absorbed by tissues - within the volume of the RF transmit coil. This is a thermogenic process. Thermogenic process - Results in production of heat. Ex: RF energy absorption MRI local and whole-body tissue heating is due to - magnetic induction Types of RF coil designs - -linearly polarized -circularly polarized (quadrature) Function of coils - -transmit only -receive only -transmit/receive Mos...

As early Greek civilization became increasingly refined and sophisticated (c. 500 b.c.e.), a new kind of thinker emerged, known as a sophos, from the Greek word for "wise." These "wise men"(and they were almost exclusively men) asked increasingly sophisticated questions about all sorts of things, but especially about natural processes and the origins and essence of life. Although mythology and religion continued to play important roles in the lives of most people for centuries, these first p...

CONTENT EXAM 305 QUESTIONS WITH 100% CORRECT DETAILED ANSWERS 2024 Host - ANSWER- a food source Decrease in atmospheric pressure - ANSWER- associated with stormy weather and precipitation Barometer - ANSWER- an instrument that measures atmospheric pressure Anemometer - ANSWER- measures the speed of wind or gas current Hygrometer - ANSWER- measures humidity of air or gas Independent Variable - ANSWER- quantity that is known, plotted along the X-axis Dependent Variable - ANS...

Which of the following are physiologic factors that occur from an anaphylactic reaction? Select all that apply. a. Elevated creatinine levels b. Vasodilation c. Bronchial smooth muscle contraction d. Increased vascular permeability - b, c, d A non-emergent quench can take approximately how long? a. 1 minute b. 20 seconds c. 5-15 mins d. 2- 4 mins - c. 5-15 mins An emergent quench will take approximately 1 minute. The roaring sound heard during a quench is caused by wha...

A 52-year-old client presents to the emergency department following a car accident. The emergency department (ED) physician is concerned that the client may have intentionally crashed her car and requests a stat PMHNP consult. In speaking with the PMHNP, the client describes persistent feelings of sadness and hopelessness. She states that she often wonders if her husband would be happier if she wasn't around anymore since she's never happy and sometimes thinks about what it would be like to ju...

NYS Tow Truck Endorsement Practice Test Verified 100% (Graded A+) Which of the following if the correct definition of a tow truck? A. A motor vehicle that tows or carries a disabled illegally parked motor vehicle B. A motor vehicle that tows or carries a disabled illegally parked or abandoned motor vehicle or a motor vehicle involved in an accident C. A motor vehicle that tows or carries a legally parked or abandoned motor vehicle or motor vehicle involved in an accident D. A motor veh...

Differential Dx - Diagnostic reasoning is the process of questioning one's thinking to determine if all possible avenues have been explored and if the conclusions that are drawn are based on evidence. This is a critical step for providers who are trying to uncover a cause, or diagnosis, for their clients' signs and symptoms. The provider's initial hypothesis is known as the differential diagnosis. The differential diagnosis, or differential, is a working list of potential problems ...

Differential Dx - Diagnostic reasoning is the process of questioning one's thinking to determine if all possible avenues have been explored and if the conclusions that are drawn are based on evidence. This is a critical step for providers who are trying to uncover a cause, or diagnosis, for their clients' signs and symptoms. The provider's initial hypothesis is known as the differential diagnosis. The differential diagnosis, or differential, is a working list of potential problems that can be...

Which of the following describe when a non-ferrous object is repulsed by static magnetic field? a. Fourier transformation b. Lenz's force c. Ohm's law d. Larmor equation - Answer b. Lenz's force What is the FDA SAR limit for the whole body in first level controlled operating mode? a. 8 W/kg for 15 mins b. 4 W/kg for 15 mins c. 3 W/kg for 10 mins d. 7 W/kg for 20 mins - Answer b. 4 W/kg for 15 mins Gadolinium contains what kind of magnetism? a. Diamagnetic b. Paramagnetic c....

When rescuing an unconscious child or small adult from a window, how many rescuers enter the window to assist the victim? A. 3 B. 1 C. 0 D. 2 - ANSWERD. 2 When cutting through a roof, a firefighter should avoid: A. removing the built-up material prior to cutting B. cutting through joists, rafters, or trusses C. making one large opening D. using a power saw - ANSWERB. cutting through joists, rafters, or trusses Which of the following is an advantage of the flat load? A. Only four p...