Venipuncture and Ultrasound Basics Practice Test

These questions are part of the practice quiz. Start practicing

• When handling temperature-sensitive specimens, which step is essential?
• What is the purpose of coupling gel in ultrasound procedures?
• Which of the following describes three common ways to manipulate the ultrasound probe?
• When performing ultrasound-guided venipuncture, what are the two common approaches?
• Which elements constitute proper aseptic technique in routine venipuncture?
• Which description best matches the appearance of a vessel on ultrasound with Doppler?
• What is the primary purpose of applying a tourniquet during venipuncture and how long should it be applied?
• Which property of a medium most directly affects propagation speed of ultrasound?
• Which steps are typical patient-preparation steps for ultrasound-guided venipuncture?
• How is Doppler ultrasound used to facilitate venipuncture in patients with difficult access?
• How can phlebitis be prevented during phlebotomy practice?
• In the transverse (horizontal) plane, the probe should be oriented toward which direction of the patient?
• Which of the following is NOT a type of ultrasound probe?
• Which color indicates flow toward the probe?
• What is the function of EDTA in lavender-top tubes and what tests rely on it?
• How can you confirm successful venipuncture with real-time ultrasound?
• What is a typical needle entry angle for routine venipuncture?
• What is the preferred catheter size for patients younger than 1?
• Which vein is most commonly used for routine venipuncture and why?
• What could be the consequence of failing to keep certain specimens at recommended temperatures during transport?
• How should you hold the ultrasound probe to ensure stability during an examination?
• An anechoic structure on ultrasound is most consistent with which content?
• What step is critical in children?
• What should you do when you see a flash of blood during IV catheter insertion?
• Which strategy most directly reduces venipuncture failure due to poor visualization of veins?
• Which statement accurately describes a serum tube?
• Which statement best describes the effect of increasing gain on the ultrasound image?
• Which metrics assess ultrasound image quality?
• What is the purpose of including date and time on the specimen label?
• Which transducer and frequency are best for imaging superficial structures during ultrasound-guided venipuncture?
• What is the proper technique and rationale for releasing the tourniquet during venipuncture?
• If blood products are not being given, what size catheter should you use?
• Which technique helps reduce the risk of infection during venipuncture?
• Where should the needle be placed after withdrawing blood?
• What is venipuncture?
• Which item is not among the listed ultrasound image quality metrics?
• What do you need for IV starts?
• Which term describes tissue that appears whiter or brighter on ultrasound?
• Which complication involves air or catheter embolization?
• Which tests are most affected by delays or incorrect temperatures?
• Which term describes tissue that appears darker than surrounding structures?
• Which troubleshooting item is described as a depth setting to adjust for imaging?
• What are early signs of nerve injury during venipuncture and immediate steps to take?
• Name a common ultrasound artifact caused by strong reflectors at tissue interfaces.
• Which characteristic is NOT desirable when selecting a vein for venipuncture?
• What does ALARA stand for and why is it important in ultrasound?
• What is the purpose of the tourniquet during IV start?
• What is the correct order of steps after blood is collected?
• What is color Doppler used for in vascular assessment?
• Which of the following is a troubleshooting consideration mentioned?
• What are other sources of attenuation?
• Which veins are typically used for venipuncture?
• Which step is performed first in venipuncture to ensure safety?
• What information must be included on a bedside label for a collected blood specimen?
• On ultrasound, a structure that is pitch black at all angles most likely represents what?
• What should you educate the patient on regarding IV catheters?
• Which practice supports maintaining analyte stability during transport?
• Which vein is commonly used for venipuncture?
• Which statement is true regarding temperature control for specimens?
• Blue needle gauge corresponds to which gauge size?
• What is in the IV start kit?
• How many times should EDTA and anticoagulant tubes be inverted after collection and why?
• In Doppler imaging, which color indicates blood flow toward the transducer?
• Which set of knobs is typically found on an ultrasound machine?
• On the ultrasound image display, which region corresponds to deeper tissue?
• What is ultrasound?
• The static ultrasound-guided venipuncture approach is used primarily for what purpose?
• How do arterial and venous Doppler waveforms differ?
• Yellow needle gauge corresponds to which gauge size?
• Which practice would NOT help prevent phlebitis during venipuncture?
• Which complication describes inflammation of a vein, often with a clot, associated with IV use?
• In the sagittal plane, the probe should point toward which direction?
• How should you position the patient and arm to optimize vein access for venipuncture?
• Which statement best describes the relationship between timely transport, proper storage temperature, and test accuracy?
• To improve visualization of superficial structures, how should depth be set?
• Which color indicates blood flow toward the probe?
• What is the rationale for anchoring the vein with the non-dominant hand during venipuncture?
• What is the primary reason for maintaining proper storage temperature during handling of samples?
• What is the primary purpose of palpating a vein before insertion of the needle?
• Which control is used to increase the brightness of the ultrasound image?
• Why are some analytes refrigerated or frozen during transport?
• What is the recommended first step before attempting IV placement?
• In which populations should the lower extremities be avoided for IV placement?
• What is ultrasound anisotropy and how can it affect nerve visualization?
• What is the maximum recommended Doppler angle for venous flow assessment?
• How often should the IV site be changed to reduce infection risk?
• What are the typical frequency ranges and uses of linear vs curvilinear ultrasound transducers?
• What post-venipuncture step directly helps minimize hematoma formation?
• What does vein compressibility indicate on ultrasound, and what would noncompressibility suggest?
• What is the primary difference between B-mode imaging and Doppler imaging?
• In ultrasound terminology, what does anechoic indicate about a structure such as a vessel?
• What is the commonly recommended needle insertion angle for venipuncture?
• Why do we perform venipuncture?
• What is propagation speed?
• How should the bevel of the needle be oriented during venipuncture?
• Which digits are recommended for gripping the ultrasound probe during use?
• Which technique helps stabilize the vein during venipuncture to improve success?
• Which components are most at risk if transport temperature is not controlled?
• Which statement best defines a hematoma in venipuncture and describes strategies to minimize its occurrence?
• Why inspect veins before IV placement?
• Which statement describes the consequence of not following the correct order of draw?
• Where should the ultrasound probe cord be draped to prevent it from being dropped?
• Which condition is listed as a reason to avoid lower-extremity IV placement?
• Which item is a troubleshooting consideration related to probe settings?
• What is frequency of an ultrasound wave measured in?
• Which action represents best practice when signs of nerve injury are suspected during venipuncture?
• Which of the following actions best reduces the risk of nerve injury during venipuncture?
• What information does Doppler spectral waveform analysis provide?
• Which of the following is NOT listed as a potential complication of venipuncture?
• Which of the following is not a standard method listed for manipulating the ultrasound probe?
• How is a blood vessel typically depicted on ultrasound when using color Doppler?
• Which scenario best illustrates the importance of temperature control in specimen transport?
• Which patient populations might have smaller veins?
• During venipuncture, when should the tourniquet be applied?
• Which is a major source of attenuation in soft tissue?
• Which action secures the IV after insertion?
• Which strategy is recommended for patients with difficult venous access when using ultrasound?
• Name two risks associated with mislabeling or misidentifying specimens after venipuncture.
• Isoechoic describes structures that are which of the following?
• Which post-venipuncture complications require documentation and possibly medical follow-up?
• What determines the frequency range used in ultrasound?
• What do Piezoelectric crystals do?
• If the ultrasound image isn’t appearing, which hardware check is recommended?
• The bottom portion of the ultrasound screen corresponds to which anatomical region?
• If no blood is obtained or blood flow stops during venipuncture, what should you do?
• Which item is NOT typically required for venipuncture?
• Pink/red needle gauge corresponds to which gauge size?
• Which statement best describes the effect of delays in transport and improper temperature on specimens?
• Why is it important to cleanse the venipuncture site with antiseptic and allow it to dry?
• Hyperechoic structures appear as which of the following?
• What is one cycle of sound waves in ultrasound composed of?
• In Doppler ultrasound, which color represents blood flow moving away from the transducer?
• Which of the following is not a source of attenuation?
• As ultrasound travels through a medium with high absorption, what happens to the acoustic energy?
• Which tests require prompt handling or special processing and why?
• Which troubleshooting item is specifically listed as involving the probe cover?
• What are complications of IV starts?
• Which structure is not typically grayscale on ultrasound?
• Which term describes tissue that is similar in gray to surrounding structures?
• Which action is most effective in reducing hematoma risk after venipuncture?
• What is the function of the wall filter in Doppler imaging?
• The color corresponding to a 24 gauge needle is?
• Which step reduces the risk of skin contamination of a blood sample?
• Which of the following is typically grayscale on ultrasound imaging?
• Which description best matches a vessel appearance on ultrasound with Doppler signal?
• Why do we do IV starts?
• Which statement about attenuation is most accurate?
• Why is timely transport and appropriate storage temperature critical for certain blood specimens?
• During setup, which item relates to image depth optimization?
• Propagation speed is ____ in solids than liquids or gas.
• Which of the following is a listed troubleshooting step for ultrasound imaging?
• What is velocity?
• What causes edge or refraction artifacts in ultrasound and how can they be reduced?
• Hypoechoic tissues are best described as which?
• In ultrasound imaging, what does hypoechoic mean and which tissues are typically hypoechoic?
• What is attenuation?
• What is Doppler aliasing and how can you mitigate it?
• Doppler angle correction and its recommended range for venous flow assessment: which statement is accurate?
• Which infection-control practices are essential when using ultrasound probes for phlebotomy?
• Which combination of ultrasound modes is typically used for bedside venous imaging?
• Anechoic describes structures that appear as which color on ultrasound?
• Which color top tube is lavender and used for CBC/hematology testing?
• What is the purpose of applying a tourniquet during venipuncture?
• In venous access, what does the term patent vein mean?
• Which term describes the conversion of acoustic energy into heat within tissue?
• Which statement best describes a proper approach to aseptic technique during venipuncture?
• What needle gauges are typical for venipuncture and when would you choose a butterfly needle (23G) vs a straight needle (21–22G)?
• What should be done to maintain stability of temperature-sensitive analytes during transport?
• If there is a hematoma at the planned venipuncture site, what is the appropriate action?
• What might cause a hematoma to form after the first venipuncture attempt?
• What is the most important medium through which ultrasound transmits energy?
• What best defines an IV catheter?
• What is the primary goal in managing transport time and temperature for certain specimens?
• Which situation would contraindicate starting an IV on the affected side?
• What is the recommended duration of minor discomfort and discoloration at the puncture site after venipuncture?
• In a phlebotomy setting, what is a key practice to protect specimen integrity during transport?
• Why is exposing the area to be venipuncture important during ultrasound-guided procedures?
• The color corresponding to an 18 gauge needle is?
• Which of the following describes patient-reported conditions or symptoms that should be communicated prior to venipuncture?
• Which of the following is a special consideration when performing venipuncture?
• What special considerations apply to venipuncture in pediatric patients?
• Where is the best location to locate a vein for routine venipuncture?
• To reduce the effects of ultrasound anisotropy on nerve visualization, what should you do?
• Which statement about venous Doppler waveforms is true?
• Hydration prior to venipuncture can help by?
• What is the approximate speed of sound in soft tissue and why is this value important in ultrasound imaging?
• Which ultrasound setting determines where the system focuses to optimize resolution in a region of interest?
• What is a common issue with rolling veins and how can it be prevented?
• What is the center marker on the long and short axis of the ultrasound probe used for?
• What does adjusting the focus position on an ultrasound system control?
• Green needle gauge corresponds to which gauge size?
• What is the correct order of draw for evacuated tubes and why is it important?
• When inserting a needle for venipuncture under ultrasound guidance, which path minimizes posterior wall injury?