CMT Medical Procedures & Techniques 1 — Questions and Answers
Question 1: What is the first step in preparing a patient for a blood pressure measurement?
- Ask the patient to lay down.
- Ensure the patient is seated with their arm at heart level. (Correct answer)
- Wrap the cuff around the patient’s leg.
- Take the patient’s temperature first.
Correct answer: Ensure the patient is seated with their arm at heart level.
Proper patient positioning is vital for obtaining an accurate blood pressure reading. The patient should be comfortably seated with their back supported, feet flat on the floor, and the arm being measured supported at heart level. This ensures that hydrostatic pressure does not artificially inflate or deflate the reading, leading to reliable results.
Question 2: Which of the following is the most common site for drawing blood from an adult patient?
- The femoral artery
- The median cubital vein (Correct answer)
- The jugular vein
- The radial artery
Correct answer: The median cubital vein
The median cubital vein, located in the antecubital fossa (inner elbow), is the most common site for drawing blood due to several factors. It is typically large, superficial, and well-anchored, making it easily accessible and less prone to rolling during venipuncture. This location also generally causes less discomfort for the patient compared to other potential sites.
Question 3: How should a Certified Medical Technician prepare a sterile field for a procedure?
- Clean the area with alcohol and arrange sterile items. (Correct answer)
- Place all supplies in a sterile tray without cleaning the area.
- Ensure all supplies are packaged and sealed.
- Wash your hands and use sterile gloves.
Correct answer: Clean the area with alcohol and arrange sterile items.
Preparing a sterile field is a critical step to prevent contamination and infection during medical procedures. This involves first cleaning the designated area with an antiseptic solution, such as alcohol, to reduce microorganisms on the surface. Once disinfected, sterile items are carefully arranged on this prepared surface, ensuring they remain free from pathogens and ready for use.
Question 4: Which of the following is considered a non-sterile procedure?
- Catheter insertion
- Blood pressure measurement (Correct answer)
- Wound dressing change
- Intravenous catheter placement
Correct answer: Blood pressure measurement
A non-sterile procedure is one that does not require the use of sterile instruments or a sterile field because it does not involve breaking the skin or entering a normally sterile body cavity. Blood pressure measurement is a routine vital sign assessment performed externally on intact skin. In contrast, catheter insertion, wound dressing changes, and IV catheter placement are invasive procedures that require strict sterile technique to prevent infection.
Question 5: What is the correct procedure for administering an intramuscular injection?
- Insert the needle at a 45-degree angle.
- Inject the medication rapidly to ensure proper absorption.
- Administer the injection at a 90-degree angle to the skin. (Correct answer)
- Use a short needle for adults.
Correct answer: Administer the injection at a 90-degree angle to the skin.
Administering an intramuscular injection correctly requires inserting the needle at a 90-degree angle to the skin. This ensures the medication penetrates deep into the muscle tissue, bypassing the subcutaneous fat layer. Injecting at this angle promotes proper absorption and minimizes the risk of the medication being deposited into the wrong tissue, which could lead to pain or ineffective treatment.
Question 6: What should a medical technician do if they accidentally stick themselves with a used needle?
- Report the incident immediately and seek medical attention. (Correct answer)
- Continue with the procedure, as it’s a common mistake.
- Dispose of the needle and keep working.
- Use the needle for another task.
Correct answer: Report the incident immediately and seek medical attention.
Accidentally sticking oneself with a used needle is a serious occupational hazard that carries a significant risk of transmitting bloodborne pathogens. The immediate and correct action is to report the incident to a supervisor and seek medical attention without delay. This allows for proper documentation, risk assessment, and timely initiation of post-exposure prophylaxis if necessary, protecting the healthcare worker's health.
Question 7: What is the primary purpose of patient charting in medical procedures?
- To create a history for insurance purposes.
- To document patient observations, procedures, and outcomes. (Correct answer)
- To maintain a record of all medical supplies used.
- To track the financial costs of the procedure.
Correct answer: To document patient observations, procedures, and outcomes.
Patient charting is the systematic documentation of a patient's medical history, observations, procedures performed, and outcomes of care. Its primary purpose is to create a comprehensive, legal record that ensures continuity of care and effective communication among healthcare providers. Accurate charting is essential for tracking patient progress, making informed treatment decisions, and serving as a legal reference.
Question 8: What is the correct positioning for a patient undergoing a lumbar puncture?
- Lying on their back with knees to the chest.
- Sitting upright with legs dangling.
- Lying on their side with knees drawn up to the chest. (Correct answer)
- Standing with hands on the hips.
Correct answer: Lying on their side with knees drawn up to the chest.
For a lumbar puncture, the correct positioning is lying on their side with knees drawn up to the chest, often referred to as the fetal position. This specific posture helps to maximize the space between the vertebrae in the lumbar region. Widening these intervertebral spaces makes it easier and safer for the healthcare provider to insert the needle into the subarachnoid space, facilitating the procedure.
Question 9: What should be checked before administering an intravenous (IV) fluid?
- Ensure the IV fluid is clear and at room temperature. (Correct answer)
- Check the patient’s blood type.
- Confirm the patient’s current medications.
- Assess the patient’s allergies.
Correct answer: Ensure the IV fluid is clear and at room temperature.
Before administering any intravenous (IV) fluid, a medical technician must perform several critical safety checks. Ensuring the IV fluid is clear and free of particulate matter or discoloration is essential, as these could indicate contamination or degradation of the solution. Additionally, allowing the fluid to reach room temperature helps prevent patient discomfort and potential complications like hypothermia.
CMT Medical Procedures & Techniques 1
What is the first step in preparing a patient for a blood pressure measurement?