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ARRT Limited Scope in Radiography (LSPR) Practice Tests & Test Prep by Exam Edge - Topics


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ARRT Limited Scope of Practice in Radiography Exam Blueprint

Understanding the exact breakdown of the ARRT Limited Scope of Practice in Radiography test will help you know what to expect and how to most effectively prepare. The ARRT Limited Scope of Practice in Radiography has multiple-choice questions The exam will be broken down into the sections below:

ARRT Limited Scope of Practice in Radiography Exam Blueprint
Domain Name % Number of
Questions
Radiation Protection 22.5% 23
Equipment Operation and Quality Control 11.0% 11
Image Acquisition and Evaluation 22.5% 23
Image Procedures 29% 29
Patient Care and Education 15.0% 15

ARRT Limited Scope of Practice in Radiography - Exam Topics Sample Questions

Which of the following is true about platelet counts?

Correct Answer:
platelets are smaller than both white and red blood cells.


the statement "platelets are smaller than both white and red blood cells" is accurate when it comes to the size comparison among these blood components. platelets, also known as thrombocytes, are indeed smaller than both white blood cells (leukocytes) and red blood cells (erythrocytes). typically, a platelet measures about 2-3 micrometers in diameter, whereas red blood cells are about 6-8 micrometers, and white blood cells are larger, generally ranging from about 12-17 micrometers in size depending on the type.

a platelet count is a crucial clinical test that measures the number of platelets present in the blood. this test is vital because platelets play a significant role in blood clotting, which is essential for stopping bleeding. when you have a cut or a wound, platelets activate and aggregate at the site to form a 'plug' that helps seal the blood vessel, preventing further bleeding.

the standard method for obtaining a sample for a platelet count involves drawing blood from a vein, typically in the arm. this test is not only used to monitor the general health status of an individual but also plays a critical role in diagnosing various medical conditions. it is particularly useful in diagnosing diseases that affect blood clotting or the bone marrow, where blood cells are produced. additionally, it helps in determining the cause of symptoms like excessive bleeding or unusually frequent clotting, which could indicate underlying health issues.

normal platelet counts range from 150,000 to 400,000 platelets per microliter of blood for adults. values outside this range can indicate various health problems. a low platelet count (thrombocytopenia) can lead to excessive bleeding, while a high platelet count (thrombocytosis) may increase the risk of thrombosis, where clots form inside blood vessels and can potentially block them.

in summary, understanding the size of platelets relative to other blood cells and their count in the bloodstream provides essential insights into many aspects of an individual's health, particularly in relation to blood clotting and the diagnosis of related diseases.

Darvocet is an analgesic. Analgesic’s are known to:

Correct Answer:
relieve pain


the question at hand is concerned with the function of darvocet, which is classified as an analgesic. analgesics, fundamentally, are medications designed to relieve pain without causing the loss of consciousness. this sets analgesics apart from anesthetics, which are used to prevent sensation entirely, potentially causing unconsciousness depending on the type used.

analgesics function by altering the way the brain perceives pain or by interfering with the pain signals sent through the nervous system. darvocet, specifically, contains both propoxyphene and acetaminophen. propoxyphene works in the brain to change how your body feels and responds to pain, while acetaminophen can also reduce a fever.

the options given in the question seem to test the understanding of the specific roles of various types of medications and procedures: 1. **prevent sensation** - this is incorrect for analgesics but correct for anesthetics. anesthetics are used in surgical contexts to block sensation and possibly consciousness. 2. **relieve pain** - this is the correct choice. as already discussed, the primary role of analgesics like darvocet is to alleviate pain. 3. **constrict blood vessels** - this is generally the action of vasoconstrictors, not analgesics. vasoconstrictors are used to narrow blood vessels, which can increase blood pressure or reduce acute hypotension. 4. **puncture a vein** - this describes a venipuncture, which is a procedure used to access a vein, typically for drawing blood or administering treatments, not a function of analgesics.

thus, the correct answer to the question "analgesics are known to:" in the context of darvocet and its classification, is "relieve pain." this reflects the fundamental purpose of analgesic medications – to manage and alleviate pain without affecting consciousness or other sensory functions.