Brainarium

Activity seen in the liver and spleen during a perfusion lung scan would most likely be due to: a. Normal physiology and biodistribution b. Left-to-right cardiac shunt c. Dissociation and oxidation to free pertechnetate d. COPD e. MAA particles smaller than 5 microns - ANSWER-E According to national standards, how often should the activity linearity of a dose calibrator be measured? a. Each day of use b. Weekly c. Monthly d. Quarterly e. Annually - ANSWER-D The use of elliptical an...

Urinary Bladder - ANSWER-a temporary storage reservoir for urine located in the pelvic cavity Peristaltic Waves - ANSWER-involuntary movements of the longitudinal and circular muscles Reservoir - ANSWER-a large lake or pool Rugae - ANSWER-a series of ridges produced by the folding of the wall of an organ Trigone - ANSWER-smooth triangular region of the internal urinary bladder formed by the two ureteric orifices and the internal urethral orifice

Elastic Fibers - ANSWER-the connective tissue fiber that is yellowish in color, as opposed to the collagen fiber that is whitish Blood Pressure - ANSWER-pressure exerted by blood on the vessel walls Mechanical Energy - ANSWER-the total amount of kinetic energy and potential energy of an object that is used to do a specific work Kinetic Energy - ANSWER-a form of energy that an object or a particle has by reason of its motion Blood Vessels - ANSWER-the components of the circulatory system t...

Superior Vena Cava - ANSWER-major vein that drains the blood from lower limbs, trunk, and abdomen into the right ventricle Inferior Vena Cava - ANSWER-major vein that drains the blood from lower limbs, trunk, and abdomen into the right ventricle Abdominal Aorta - ANSWER-the main blood vessel in the abdominal cavity Ovary - ANSWER-female reproductive organ Aorta - ANSWER-major blood vessel that arises out of the left ventricle

Which artery becomes the femoral artery one it leaves the body cavity? - ANSWERExternal Iliac Artery Which heart sound does the closing of the Bicuspid valve correspond to? - ANSWERLub/S1 Which part of the cardiac cycle is represented by the QRS complex? - ANSWERVentricular Systole What is the difference between the maximum and resting cardiac output (CO) called? - ANSWER-Cardiac Reserve What is the normal resting heart rate (HR) of an adult? - ANSWER-60-110 bp

WGU - D313 Bundled Unit Exams|2025 Update with complete solutions

What is the simplest substance? - ANSWER-elements periodic table - ANSWER-displays all known element according to similarities between elements' properties. What makes up all of the material in the universe? - ANSWER-Matter What's an example of a pure substances? - ANSWER-Aluminum What's a compound? - ANSWER-A substance made up of 2 or more different elements joined together.

The renal hilum contains the renal artery and vein, which cannot be distinguished with ultrasonography. - ANSWER-False The ureters are easily traced with sonography along their entire course from the kidneys to the bladder. - ANSWER-False Which of the following statements regarding renal sonography is correct? - ANSWERThe renal sinus is highly echogenic, but anechoic areas will be seen within it when it fills with urine. There is no role for using a low-frequency, phased-array transducer i...

When visualizing pelvic structures on ultrasound, one can distinguish loops of bowel from ovaries because loops of bowel have __________. - ANSWER--hypoechoic outer walls -hyperechoic undulating inner walls Cardiac activity is typically first visible within the fetal pole on endovaginal ultrasound imaging at approximately __________weeks gestational age? - ANSWER-6

What is the structure identified by the indicator line in this accompanying image taken along the popliteal fossa, using a transverse posterior imaging approach? - ANSWERE. None of the above Knee sonography often involves identifying a recognizable anatomic landmark and tracing structures of interest from there. Typically, bones are good landmarks to use, as they are easy to identify with ultrasound. - ANSWER-A. True Which of the following structures is identified by the indicator line in t...

Which of the following graphs best represents the high-resistance waveform pattern that would be seen with pulsed-wave Doppler inspection of an ovarian arterial vessel? - ANSWER-Image 2 Which of the following structures is indicated in this sagittal-view, transvaginal ultrasound image of an ovary? - ANSWER-Dominant ovarian follicle Which of the following structures is indicated in this transverse-view, transvaginal ultrasound image of an ovary

Which of the following statements best characterizes sonographic assessment of basic fetal anatomy? - ANSWER-The stomach, gallbladder, and urinary bladder appear anechoic. Which of the following statements best characterizes sonographic assessment of basic fetal neuroanatomy? - ANSWER--The fetal skull normally has an elliptical echogenic appearance. -The choroid plexus and pia, arachnoid, and dura mater layers have a bright, hyperechoic appearance Which of the following statements best c...

Functional classification systems (e.g., Couinaud classification) divide the liver into segments that each possess a branch of the portal vein, hepatic artery, hepatic vein, and bile duct. A.True B.False - ANSWER-A.True Which of the following statements regarding sonographic anatomy of the liver and biliary system is correct? A.The common bile duct has hyperechoic walls and a lumen that shows no flow with Doppler imaging. B.The hepatic vein has a thin wall and a lumen that demonstrates ...

Which of the following structures in this transverse view ultrasound image of the anterior neck is correctly identified by its corresponding arrow? - ANSWER-Arrow 2 identifies strap musculature. Which of the following statements correctly characterizes thyroid hormone regulatory control? - ANSWER--The hypothalamus releases thyrotropin-releasing hormone (TRH). -Thyrotropin-releasing hormone stimulates the release of thyroid-stimulating hormone (TSH). -A decrease in TRH and TSH levels resul...

Which of the following statements is (are) incorrect? A. The ora serrata is an anterior attachment site for the retina. B. Involvement of the macula is a key determinant of the timing of surgery following retinal detachment. C. Measurement of the optic nerve sheath diameter can help estimate intracranial pressure. D. A and B only E. None of the above - ANSWER-E Sonographically, the normal retina can be readily distinguished from underlying choroidal layers. - ANSWER-False Which of the ...

Which of the following statements regarding transvaginal imaging technique is correct? - ANSWER--Transvaginal ultrasound is optimally performed with an empty bladder. -A chaperone should be present during transvaginal ultrasound examinations. Multiple professional ultrasound societies have published position statements saying that the benefits of prudently performed medical ultrasound outweigh theoretical safety concerns. - ANSWER-True Which of the following statements accurately character...

Which of the following statements is (are) true regarding anisotropy? - ANSWER--It is evident when imaging muscles and tendons. -It is a false hypoechogenicity resulting from oblique ultrasound beams. -Its presence can be confirmed by tilting the probe at slight angles to the tendon or muscle and noting varying degrees of echogenicity. Anisotropy is an artifact that requires changing gain settings to overcome. - ANSWERFalse Tendons are hyperechoic when compared to muscles. - ANSWER-True W...

Which of the following statements correctly characterizes the esophagus? - ANSWER-- The esophagus possesses a mucosal layer composed of rapidly regenerating squamous epithelium. -The esophagus does not possess a serosal layer through the majority of its course. -It has a muscularis externa layer that generates peristaltic waves of contraction through the esophagus. Which of the following statements correctly characterizes the mesentery? - ANSWER-- The mesentery is formed by a double layer...

The two primary structures of interest when evaluating ejection fraction with a bedside cardiac ultrasound using the parasternal long-axis view include the __________. A. right ventricle and the aortic valve B. walls of the left ventricle and the anterior mitral valve leaflet C. left atria and interventricular septum D. A and B only E. None of the above - ANSWER-B. walls of the left ventricle and the anterior mitral valve leaflet The tight apposition of the interventricular septum and th...

Which adjunctive vascular imaging mode is identified by the arrow in this image? A.A spectral waveform B.Spectral analysis C.Greyscale imaging D.Color Doppler E.None of the above - ANSWER-D.Color Doppler The external carotid artery __________. A.is a branch off of the internal carotid artery B.supplies direct blood flow to the anterior circulation of the brain C.supplies blood to the head and neck D.All of the above E.A and B only - ANSWER-C.supplies blood to the head and neck