Incidence density - Guides d'étude, Notes de cours & Résumés

SPI Mock Exam (2024) || Complete Questions & Answers (Graded A+) SPI Mock Exam (2024) || Complete Questions & Answers (Graded A+) The mechanical index predicts the likelihood of: A. Cavitation B. Aliasing C. Turbulence D. Doppler shift E. Thermal damage - ANSWER - A. Cavitation Mirror imaging artifact is a result of a(n): A. A weak reflector B. Strong reflector C. Impedance difference D. Weak attenuation structure E. Strong attenuating structure - ANSWER - B. Stro...

Which is described as the ability of an object to resist compression and relates to the harness of a medium a stiffness b density c pressure d inertia a Stiffness An increase in PRF would lead to a an increase in DF b a decrease in PD c an increase in the number of cycles d decrease in resolution a an increase in DF Which of the following would have the highest propagation speed a air b bone c soft tissue d water b bone As imaging depth increases, PRF must: a...

ARDMS Ultrasound Physics & Instrumentation Exam (2023/24) || Questions & Answers (Rated A+) ARDMS Ultrasound Physics & Instrumentation Exam (2023/24) || Questions & Answers (Rated A+) Which of the following is defined as only the active time? - ANSWER - Pulse duration The inertia of the medium describes its: - ANSWER - Density Which of the following is determined by the sound source only? - ANSWER - Frequency What is the total amount of attenuation that occurs if a 6.0-MHz sound ...

WOCN wound certification exam #1 Questions With Solutions Define prevelence (# of people w/ a condition (ex pu) divided by # of people in target poplulation at particular point in time )x100 What is difference between cumulative incidence and incidence denstiy? incidence is # of people who develop condition of interest during specific time divided by # of people in study population X100 where incidence density is # of people dev same condition divided by total time people were free of...

NSG6001 Test Bank.1 Revised Questions and Correct Answers. Chapter 3. Health Promotion MULTIPLE CHOICE 1. Which of the following is a primary prevention measure for a 76-year-old man newly diagnosed with a testosterone deficiency? A. Calcium supplementation B. Testicular self-examination C. Bone density test D. Digital rectal examination ANS: A PTS: 1 2. Which of the following is an example of secondary prevention in a 50-year-old woman? A. Yearly mammogram B. Low animal-fat diet C....

What is nutrition? - Answer-study of how food nourishes the body Vitamin C - Answer-protects cells against damage important for healthy gums and skin helps absorb iron prevents scurvy What are nutrients? - Answer-components of food that are indispensable to the body's functioning What do nutrients provide? - Answer-energy serve as building material maintain or repair body parts supports growth "Essential" Nutrients - Answer-must be obtained from an external source because we can't ...

MULTIPLE CHOICE 1. The nurse is planning to teach a woman about perimenopause. What would the nurse include regarding lowered estrogen level? a. It prevents osteoporosis b. It decreases vaginal lubrication c. It raises the level of low-density lipoproteins d. It raises the level of high-density lipoproteins ANS: C Estrogen increases the amount of high-density lipoproteins that carry cholesterol from body cells to the liver for excretion. With lowered levels of estrogen, low-den...

Sarah, who is postmenopausal, has controlled asthma and hypertension being effectively treated with medication, and she smokes cigarettes. She has a lowdensity lipoprotein (LDL) cholesterol level of 170 mg/dL and a high-density lipoprotein (HDL) level of 40 mg/dL. To reduce Sarah's risk of a coronary event, the treatment plan would focus on: A. Lowering her LDL cholesterol level. B. Lowering her HDL cholesterol level. C. aggressively treating and controlling her hypertension and ast...

Which of the following is defined as only the active time? - Pulse duration The inertia of the medium describes its: - Density Which of the following is determined by the sound source only? - Frequency The prefix "centi" denotes: - Hundredths If the angle of incidence is 40°, what is the angle of transmission at the interface if medium 1 has a propagation speed of 1320 m/s and medium 2 has a propagation speed of 1700 m/s? - >40° The change in the direction of the original sound wave...

PLE CHOICE 1. Which best describes the recent population trend in rural America? ANS: D Although the urban growth rate has been steadily climbing since 1890, with numbers of urban dwellers surpassing those in rural areas around 1920, the number of rural residents is the highest in the country’s history (U.S. Department of Agriculture [USDA], 2016). In 2010 to 2015 population loss in nonmetro areas occurred in the United States as a whole. In 2014 nonmetro populations stabilized afte...