RADR 1309 Introduction to Radiography and Patient Care
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Free RADR 1309 Introduction to Radiography and Patient Care Questions
All are considered part of the sterile surgical team except:
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Radiographer
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Surgical tech
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Surgeon
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Physician assistant
Explanation
Correct Answer: A) Radiographer
Explanation of the Correct Answer:
A. Radiographer: A radiographer is typically not part of the sterile surgical team. Although they play an essential role in providing imaging during the surgery (e.g., fluoroscopy, X-rays), they are usually not involved in sterile procedures and are positioned outside the sterile field. They do not handle sterile instruments or interact directly with the surgical site.
Why the Other Options Are Correct:
B. Surgical tech: A surgical technologist (or scrub tech) is part of the sterile surgical team and is responsible for preparing the sterile field, passing instruments to the surgeon, and assisting during the surgery.
C. Surgeon: The surgeon is the primary member of the sterile surgical team. They perform the actual surgery and are directly responsible for the patient's surgical care.
D. Physician assistant: A physician assistant (PA) working in surgery is also considered part of the sterile surgical team. They may assist with the surgery, help with patient preparation, and perform specific tasks under the surgeon’s direction.
Summary:
The radiographer is not typically part of the sterile surgical team. While they contribute significantly to intraoperative imaging, they are generally positioned outside the sterile field and do not engage in sterile procedures. The surgical tech, surgeon, and physician assistant are all considered part of the sterile team.
Which of the following is the most effective method for achieving medical asepsis?
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Frequent hand washing
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Immunizations
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Changing linen after every patient
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Cleaning the radiographic table weekly
Explanation
Correct Answer:
A) Frequent hand washing
Explanation of the Correct Answer:
Frequent hand washing is the most effective and fundamental method for achieving medical asepsis. Proper hand hygiene helps prevent the transmission of microorganisms and is critical in reducing the spread of infections in healthcare settings. Hand washing is recommended by health organizations like the CDC as a key practice in maintaining asepsis.
Why the Other Options Are Incorrect:
B) Immunizations
While immunizations are important in preventing specific diseases, they are not directly related to achieving medical asepsis, which focuses on preventing the spread of microorganisms during patient care.
C) Changing linen after every patient
Changing linen after every patient is important for preventing cross-contamination but is not as effective as frequent hand washing in maintaining overall asepsis. Hand hygiene prevents the direct transfer of pathogens, which is a more widespread protective measure.
D) Cleaning the radiographic table weekly
Cleaning the radiographic table regularly is important for maintaining a clean environment, but it does not address the immediate and effective prevention of microorganism transmission as thoroughly as hand washing does.
Summary:
Frequent hand washing is the most effective method for achieving medical asepsis, as it directly prevents the spread of pathogens and maintains a sterile environment in healthcare settings.
Which of the following examinations provides images of the urethra?
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VCUG
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IVU
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BUN
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ERCP
Explanation
Correct Answer:
A. VCUG
Explanation of the Correct Answer:
A VCUG (Voiding Cystourethrogram) is the examination that provides images of the urethra. This procedure involves filling the bladder with a contrast material (usually a contrast dye) through a catheter, and then taking X-ray images while the patient urinates. The VCUG provides detailed imaging of the bladder and urethra, and it is commonly used to assess for conditions such as vesicoureteral reflux or anatomical abnormalities of the urinary tract, including the urethra.
Why the Other Options Are Incorrect:
B. IVU (Intravenous Urography)
An IVU is an imaging technique that uses contrast dye injected into the bloodstream to visualize the kidneys, ureters, and bladder. While it provides detailed images of the upper and lower urinary tract, it does not specifically focus on the urethra.
C. BUN (Blood Urea Nitrogen)
BUN is a blood test used to assess kidney function, not an imaging exam. It measures the amount of nitrogen in the blood that comes from the waste product urea. It is not related to imaging the urethra or any other part of the urinary tract.
D. ERCP (Endoscopic Retrograde Cholangiopancreatography)
ERCP is a procedure used to examine the bile ducts, pancreas, and gallbladder using an endoscope and contrast dye. It does not involve imaging of the urinary tract or the urethra. It is specifically designed for the biliary system.
Summary:
The VCUG (Voiding Cystourethrogram) is the examination that provides images of the urethra, helping to assess urinary tract function and identify abnormalities. The other procedures listed are used for different parts of the body or for different diagnostic purposes.
A syringe contains which of the following parts?
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Barrel, cannula, hub
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Tip, barrel, plunger
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Hub, tip, shaft
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Tip, plunger, bevel
Explanation
Correct Answer:
B) Tip, barrel, plunger
Explanation of the Correct Answer:
A syringe consists of three main parts:
Tip: The part of the syringe where the needle is attached.
Barrel: The outer casing of the syringe that holds the medication or fluid.
Plunger: The part that is pushed to force the fluid out of the syringe or pulled to draw fluid into the barrel.
Why the Other Options Are Incorrect:
A) Barrel, cannula, hub
This option is incorrect because the cannula is the tube part of the needle, not a component of the syringe itself. The hub is part of the needle assembly, not the syringe.
C) Hub, tip, shaft
This is incorrect because the hub and shaft refer to parts of the needle, not the syringe. The syringe itself does not have a shaft or hub.
D) Tip, plunger, bevel
This is incorrect because the bevel is the angled tip of the needle, not part of the syringe. The syringe includes the tip, barrel, and plunger, but not the bevel.
Summary:
A syringe consists of the tip, barrel, and plunger. These parts work together to hold and deliver fluids accurately.
Diabetic patients who are to receive an iodine contrast agent should have their medication withheld if it contains:
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Insulin
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Metformin
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Sulfonylureas
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Thiazolidinediones (TZDs)
Explanation
Correct Answer:
B. Metformin
Explanation of the Correct Answer:
Diabetic patients who are to receive an iodine contrast agent should have their metformin medication withheld before and after the procedure due to the potential risk of lactic acidosis. Metformin is excreted by the kidneys, and iodine contrast agents can temporarily affect kidney function. If kidney function is impaired, the accumulation of metformin in the body could increase the risk of lactic acidosis, a potentially life-threatening condition. To mitigate this risk, it is standard practice to temporarily withhold metformin before and for at least 48 hours after receiving an iodine-based contrast agent, and to ensure renal function is normal before resuming the medication.
Why the Other Options Are Incorrect:
A. Insulin
There is no specific contraindication for insulin use with iodine contrast agents. Insulin can be continued as needed to control blood glucose levels. However, adjustments in the insulin regimen may be required depending on the patient's fasting status and other factors.
C. Sulfonylureas
Sulfonylureas are oral diabetic medications that stimulate insulin production. While there may be some concern regarding hypoglycemia during imaging procedures due to fasting, they are not directly contraindicated with the use of iodine contrast agents. Patients may need to adjust their sulfonylurea dosing, but there is no specific reason to withhold these medications solely because of the contrast.
D. Thiazolidinediones (TZDs)
Thiazolidinediones (such as pioglitazone) are another class of oral diabetes medications that work by improving insulin sensitivity. There is no significant contraindication for withholding TZDs before or after receiving iodine contrast agents. These medications do not pose the same risk as metformin when it comes to contrast-induced nephropathy or lactic acidosis.
Summary:
Metformin should be withheld in diabetic patients receiving an iodine contrast agent to reduce the risk of lactic acidosis due to potential renal impairment. Other medications, such as insulin, sulfonylureas, and TZDs, do not require withholding prior to receiving iodine contrast, although adjustments may be needed based on individual patient factors.
Which of the following contrast media preparations would be appropriate for a GI examination when there is a likelihood of colon perforation, or when GI surgery is immediately anticipated?
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Barium sulfate mixed with normal saline solution
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Barium sulfate mixed with a carbonated beverage
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An iodinated contrast medium
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Normal saline solution with glucagon
Explanation
Correct Answer:
C. An iodinated contrast medium
Explanation of the Correct Answer:
When there is a likelihood of colon perforation or when GI surgery is immediately anticipated, an iodinated contrast medium is the most appropriate contrast preparation. Iodinated contrast agents are water-soluble and are preferred in these situations because they can be safely absorbed by the body if there is a perforation in the gastrointestinal tract. This makes them ideal in cases where there is concern about the risk of barium leakage, which can cause serious complications if spilled into the peritoneal cavity. Unlike barium, which is not absorbed by the body and can cause inflammation if leaked outside the GI tract, iodinated contrast can be absorbed and poses less risk in case of a perforation.
Why the Other Options Are Incorrect:
A. Barium sulfate mixed with normal saline solution
Barium sulfate is typically used in GI studies but is not safe if there is a risk of colon perforation. If barium leaks into the abdominal cavity, it can cause severe complications, including peritonitis. Even when mixed with normal saline, barium sulfate is still not appropriate for situations involving potential perforation.
B. Barium sulfate mixed with a carbonated beverage
While this preparation may be used for certain contrast studies (e.g., double contrast studies), it is not appropriate when there is a risk of colon perforation. The carbonated beverage does not change the fact that barium sulfate is not safe in the event of perforation, as it can cause serious issues outside of the GI tract.
D. Normal saline solution with glucagon
Normal saline solution with glucagon is not a contrast medium. Glucagon is sometimes used to relax the muscles of the GI tract during imaging procedures, but it does not provide the contrast needed for visualizing the GI tract. This combination would not be suitable for a GI examination that requires contrast imaging, especially when perforation is a concern.
Summary:
In the case of a potential colon perforation or when GI surgery is anticipated, an iodinated contrast medium is the most appropriate choice. It is water-soluble and can be safely absorbed if leakage occurs, making it safer than barium sulfate, which can lead to complications if leaked into the peritoneal cavity.
Which two of the following are the recommended treatments for a patient who has experienced extravasation of intravenous IV contrast media?
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Elevation of the affected area
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Cold or hot compresses
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Administration of an antihistamine
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A four-hour observation of the patient
Explanation
Correct Answer:
A. Elevation of the affected area
B. Cold or hot compresses
Explanation of the Correct Answer:
When a patient experiences extravasation of intravenous (IV) contrast media, it means that the contrast material has leaked outside the vein into the surrounding tissue. The two main recommended treatments for managing extravasation are:
Elevation of the affected area: This helps reduce swelling and promote the return of fluid to the bloodstream, thus reducing the potential for further tissue damage.
Cold or hot compresses: Initially, cold compresses are recommended to reduce swelling and numb the area, followed by warm compresses after 24–48 hours to improve circulation and promote healing.
Why the Other Options Are Incorrect:
C. Administration of an antihistamine
Antihistamines are generally not indicated for the management of extravasation of IV contrast media. They are typically used to treat allergic reactions, not for the local tissue response caused by extravasation.
D. A four-hour observation of the patient
While it is important to observe the patient after extravasation for any signs of further complications (such as swelling, pain, or changes in skin color), a specific four-hour observation is not a standard recommendation. Observation time can vary based on the severity of the extravasation and clinical protocol.
Summary:
For a patient who has experienced extravasation of IV contrast media, the recommended treatments are elevation of the affected area and cold or hot compresses. These methods help manage the swelling and tissue damage caused by the contrast media leaking into surrounding tissue.
Which is one of many patient preps for a barium study?
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NPO for 48 hours
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Clear liquid diet
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A full-course meal with high-fat foods
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Consumption of red-colored beverages only
Explanation
Correct Answer: B. Clear liquid diet
Explanation of the Correct Answer:
B. Clear liquid diet is typically recommended as part of the preparation for a barium study. This is to ensure that the gastrointestinal (GI) tract is as clear as possible, so the barium contrast material can be visualized properly on the radiographs. A clear liquid diet generally includes broths, clear juices, tea, coffee (without milk or cream), and gelatin.
Why the Other Options Are Incorrect:
A. NPO for 48 hours
This is too long for typical barium study prep. Patients are usually instructed to be NPO (nothing by mouth) for about 8 to 12 hours before the procedure, not 48 hours. The longer duration might be required for more invasive procedures, but not for most barium studies.
C. A full-course meal with high-fat foods
This is incorrect as a prep for a barium study. High-fat meals can interfere with the proper visualization of the digestive tract during imaging. A light diet or clear liquid diet is preferred to avoid interference with the barium contrast material.
D. Consumption of red-colored beverages only
This is also incorrect. Red-colored beverages are not recommended because they can mimic or obscure certain areas of the gastrointestinal tract on the radiographs, which could lead to misinterpretation of the results.
Summary:
For a barium study, the recommended patient prep typically involves a clear liquid diet, which helps ensure that the GI tract is clear and ready to absorb the barium for proper visualization.
What is the normal range for a prothrombin time (PT) test?
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11-13.5s
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15-25s
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35-45s
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50+s
Explanation
Correct Answer:
A. 11-13.5s
Explanation of the Correct Answer:
The normal range for a prothrombin time (PT) test is generally 11-13.5 seconds. PT measures the time it takes for blood to clot and is used to evaluate the function of certain clotting factors in the blood. A prolonged PT can indicate clotting disorders, liver disease, or the effects of anticoagulant medications.
Why the Other Options Are Incorrect:
B. 15-25s:
This range is typically seen in patients who are on anticoagulant therapy, like warfarin, where the PT is intentionally prolonged to reduce the risk of clotting.
C. 35-45s:
This is well above the normal range and would indicate a significantly prolonged clotting time, which may suggest a bleeding disorder or a very high dose of anticoagulants.
D. 50+s:
A PT of 50 seconds or more is considered extremely prolonged and would indicate a severe clotting dysfunction or very high levels of anticoagulation therapy. This is not a normal or typical range.
Summary:
The normal range for PT is generally 11-13.5 seconds. Prolonged PT values are often seen in patients undergoing anticoagulant therapy or with clotting disorders.
Guidelines for cleaning contaminated objects or surfaces include which of the following?
Clean from the least contaminated to the most contaminated areas.
Clean in a circular motion, starting from the center and working outward.
Clean from the top down.
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1 only
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1 and 2 only
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1 and 3 only
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1, 2, and 3
Explanation
Correct Answer
C. 1 and 3 only
Explanation of the Correct Answer
Statement 1 is correct because cleaning from the least contaminated to the most contaminated areas prevents the spread of pathogens. This technique avoids dragging microorganisms from dirtier zones into cleaner ones.
Statement 3 is correct because cleaning from the top down takes advantage of gravity—dirt and debris naturally fall downward, so starting at the top ensures that already-cleaned surfaces won't be recontaminated by runoff or falling particles.
Statement 2, however, is not universally applicable. While circular cleaning motions starting from the center outward are commonly used in wound care or disinfecting small localized areas, this is not a general guideline for cleaning all contaminated surfaces. In fact, broader surfaces such as equipment or counters are more effectively cleaned using linear strokes, typically in one direction (e.g., top to bottom or clean to dirty). For this reason, statement 2 is context-specific, and not a standard rule for surface decontamination in general medical cleaning protocols.
Why the Other Options Are Incorrect
A. 1 only – Omits the important top-down method.
B. 1 and 2 only – Includes a context-specific technique and omits a standard one.
D. 1, 2, and 3 – Includes a technique (statement 2) not universally applied to all contaminated surfaces.
Summary
The most broadly accepted and consistently applied cleaning guidelines include cleaning from least to most contaminated areas and cleaning from top to bottom. Circular motions starting from the center are situational and not standard for general surface cleaning, making C the correct answer.
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Frequently Asked Question
RADR 1309 is a foundational course that introduces students to the profession of radiologic technology, emphasizing patient care, safety practices, communication, and basic imaging procedures.
The course includes radiation protection, body mechanics, patient communication, medical ethics, infection control, and basic radiographic procedures.
Course duration varies by institution, but it typically spans one semester as part of an allied health or radiologic technology program.
With the right preparation and resources, including scenario-based questions and clear rationales, most students find RADR 1309 manageable and rewarding.
Practice regularly with real-world scenarios, review course materials thoroughly, and focus on developing both technical knowledge and patient care skills.
Your subscription gives you access to expertly crafted practice questions, clinical scenarios, detailed answer explanations, and coverage of all key exam areas.