Part 1 Level 3 Dxh Competency
.webp "Part 1 Level 3 Dxh Competency - Quiz")
- 1.
Mark, the DxH operator, is running the latron after a shutdown. The latron is out of specification. What should Mark do first?
- A.
Repeat with the same vial.
- B.
Repeat with a new vial.
- C.
Call service.
Correct Answer
A. Repeat with the same vial.Explanation
In this scenario, the latron is out of specification after a shutdown. To troubleshoot the issue, Mark should first repeat the test with the same vial. This is because the problem may be temporary or caused by a minor error during the initial test. By repeating the test with the same vial, Mark can determine if the issue persists or if it was just a one-time occurrence. If the problem persists, Mark can then consider other options such as repeating with a new vial or calling for service.Rate this question:
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- 2.
Mark runs the latron again with the same vial; it is out of specification again. What should Mark do?
- A.
Repeat with the same vial.
- B.
Repeat with a new vial.
- C.
Call service.
Correct Answer
B. Repeat with a new vial.Explanation
Mark should repeat the latron with a new vial because the current vial is out of specification again. This implies that there may be an issue with the vial itself, and using it again could lead to inaccurate results. Therefore, using a new vial would be the appropriate course of action to ensure accurate measurements.Rate this question:
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- 3.
Mark runs the latron again with the new vial; it is out again. What should Mark do?
- A.
Repeat with the same vial.
- B.
Call the Superviser.
- C.
Call service.
Correct Answer
C. Call service.Explanation
Since Mark has already tried running the latron again with the new vial and it is still out, it suggests that there may be a technical issue with the machine. Therefore, the best course of action for Mark would be to call the service for assistance in resolving the problem.Rate this question:
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- 4.
Mark calls service. Service instructs Mark to bleach the appertures with a 15 minute dwell time. What must Mark do after he bleaches the appertures?
- A.
He must perform a Diluent Purge to remove the bleach.
- B.
He must do a Shutdown and run Daily Checks.
- C.
He must zap the apertures to drain and rinse the baths.
Correct Answer
B. He must do a Shutdown and run Daily Checks.Explanation
After bleaching the appertures, Mark must do a Shutdown and run Daily Checks. This is necessary to ensure that the appertures are properly cleaned and ready for further use. The Shutdown process involves shutting down the system and performing necessary maintenance tasks, while the Daily Checks help in verifying the overall functionality and performance of the system. By doing these steps, Mark can ensure the proper functioning and cleanliness of the appertures, maintaining the quality of service provided.Rate this question:
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- 5.
Mark, the DxH operator, receives a pediatric bullet of blood for analysis on the DxH. What is Mark's first step?
- A.
Mixed the specimen.
- B.
Check the specimen for clots.
- C.
Put the DxH in Single-Presentation mode.
Correct Answer
B. Check the specimen for clots.Explanation
The first step for Mark, the DxH operator, is to check the specimen for clots. This is important because clots can interfere with the accuracy of the analysis and may need to be addressed before proceeding with the testing. By checking for clots, Mark ensures that the blood sample is suitable for analysis on the DxH.Rate this question:
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- 6.
Mark checks the pediatric bullet for clots and finds there are numerous fibrin strands in the specimen. What should Mark do?
- A.
Reject the specimen.
- B.
Remove the fibrin strands, vortex and run the specimen.
- C.
Incubate the specimen at 37 C for 30 minutes.
Correct Answer
A. Reject the specimen.Explanation
Mark should reject the specimen because the presence of numerous fibrin strands indicates the presence of clots. Clots can interfere with the accuracy of the test results and may lead to incorrect diagnoses. Therefore, it is necessary to reject the specimen and obtain a new one for testing.Rate this question:
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- 7.
Mark rejects the specimen and requests a new specimen. The new pediatric bullet also has fibrin strands. What should Mark do?
- A.
Reject the specimen.
- B.
Remove the fibrin strands, vortex, repeat testing and TNP platelet count noting a blue top tube is needed due to fibrin strands.
- C.
Cancel the specimen and request a blue top tube.
Correct Answer
A. Reject the specimen.Explanation
Mark should reject the specimen because the presence of fibrin strands indicates that it is not suitable for testing. Removing the fibrin strands and repeating the testing may not provide accurate results, and requesting a blue top tube is not necessary in this case. Therefore, the best course of action is to reject the specimen and request a new one.Rate this question:
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- 8.
Mark rejects the specimen and requests a new specimen. A third pediatric bullet is sent down. It also has fibrin strands. What should Mark do?
- A.
Reject the specimen.
- B.
TNP platelet count noting fibrin strand interference.
- C.
Cancel the specimen and note that the redraw must be venipuncture.
Correct Answer
A. Reject the specimen.Explanation
Mark should reject the specimen because the presence of fibrin strands indicates interference, which can affect the accuracy of the TNP platelet count. It is important to obtain a new specimen without any interference to ensure accurate results. Cancelling the specimen and noting that the redraw must be done through venipuncture is not necessary in this case.Rate this question:
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- 9.
What is the most likely cause of the fibrin strands?
- A.
High platelet count
- B.
High fibrin content in the blood
- C.
Poor collection technique
Correct Answer
C. Poor collection techniqueExplanation
The most likely cause of the fibrin strands is poor collection technique. This is because during the collection process, if the technique is not performed correctly, it can cause trauma to the blood vessels. This trauma can lead to the activation of the coagulation cascade and the formation of fibrin strands. High platelet count and high fibrin content in the blood may contribute to the formation of fibrin strands, but poor collection technique is the most likely cause.Rate this question:
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- 10.
Mark, the DxH operator has a STAT EDTA specimen from the ER which is labeled with a BNP label. Mark checks MediTech and discovers it needs both a CBCD and a BNP. What should Mark do?
- A.
Run the CBCD and after it is resulted give the specimen to Chemistry.
- B.
Call the floor and tell the nurse that he is cancelling the CBCD and that the nurse needs to reorder the CBCD and draw a new EDTA tube.
- C.
Give the specimen to Chemistry and run the CBCD when they are finished with it.
Correct Answer
A. Run the CBCD and after it is resulted give the specimen to Chemistry.Explanation
Mark should run the CBCD and after it is resulted, give the specimen to Chemistry. This means that Mark should prioritize running the CBCD as it is needed, and once the results are obtained, the specimen can be handed over to the Chemistry department for further testing or analysis.Rate this question:
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- 11.
Mark decides to run the specimen before giving it to Chemistry. He puts it in a cassette and places it on the DxH. What will happen?
- A.
The DxH will not run the specimen because it has a BNP label on it.
- B.
The DxH will run the specimen using the default settings but it will not automatically cross the results to Remisol.
- C.
The DxH will run the specimen using the default settings and cross the results to Remisol but the results will get "held" at Remisol.
Correct Answer
B. The DxH will run the specimen using the default settings but it will not automatically cross the results to Remisol.Explanation
The DxH will run the specimen using the default settings but it will not automatically cross the results to Remisol. This suggests that the DxH machine will analyze the specimen, but it will not transfer the results to Remisol automatically.Rate this question:
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- 12.
The results have an H & H Check Fail flag. What should Mark do first?
- A.
Nothing the BNP label caused the flag.
- B.
Centrifuge a small aliquot to check for lipemia.
- C.
Incubate the specimen at 37 C for 30 minutes.
Correct Answer
B. Centrifuge a small aliquot to check for lipemia.Explanation
Mark should first centrifuge a small aliquot to check for lipemia. The presence of lipemia in the specimen can cause the H & H Check Fail flag. By centrifuging a small sample, Mark can visually inspect for any signs of lipemia, such as a milky or turbid appearance. This will help determine if lipemia is the cause of the flag and guide further actions or investigations.Rate this question:
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- 13.
Mark decides to perform a saline replacement on the lipemic specimen. What must he do before he starts the procedure?
- A.
Make a slide.
- B.
Incubate the specimen at 37 C for 30 minutes.
- C.
Verify the MCHC is elevated.
Correct Answer
A. Make a slide.Explanation
Before performing a saline replacement on the lipemic specimen, Mark must make a slide. This is important because making a slide allows for proper visualization and examination of the specimen under a microscope. It helps in identifying any abnormalities or specific characteristics of the specimen that may require further analysis or intervention. Making a slide also ensures that the specimen is properly prepared and ready for the saline replacement procedure.Rate this question:
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- 14.
Mark performs a saline replacement on the lipemic specimen. Which parameter on the treated specimen must match the pre-treated specimen for the testing to be valid?
- A.
WBC count
- B.
RBC count
- C.
Platelet count
Correct Answer
B. RBC countExplanation
In order for the testing to be valid after performing a saline replacement on the lipemic specimen, the RBC count on the treated specimen must match the RBC count on the pre-treated specimen. This is because the RBC count is a crucial parameter that needs to be consistent in order to accurately interpret the test results.Rate this question:
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- 15.
The treated specimen RBC result does not match the pre-treated specimen RBC result. What should Mark do now?
- A.
Just report out the WBC, PLTs and Hgb then TNP (Test Not Performed) rest of the results.
- B.
Add saline or RBCs until the result matches.
- C.
Repeat the Saline Replacement procedure from the beginning with a new aliquot of the lipemic specimen.
Correct Answer
C. Repeat the Saline Replacement procedure from the beginning with a new aliquot of the lipemic specimen.Explanation
Mark should repeat the Saline Replacement procedure from the beginning with a new aliquot of the lipemic specimen.Rate this question:
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- 16.
What comment must be appended to results when a Saline Replacement procedure is used during testing?
- A.
Saline Replacement performed.
- B.
Questionable results, a saline replacement had to be performed.
- C.
If the results are valid, there is no need to append a message.
Correct Answer
A. Saline Replacement performed.Explanation
When a Saline Replacement procedure is used during testing, the comment "Saline Replacement performed" must be appended to the results. This comment serves as an indication that a saline replacement was done during the testing process. It helps to provide context and transparency regarding any interventions or modifications made during the testing, which may have affected the results.Rate this question:
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- 17.
What did Mark NOT do that he should have done?
- A.
Document in the communication log, the reason for the increased TAT.
- B.
Verify the results on the back-up DxH.
- C.
Notify the ER doctor that the TAT would be increased due to the lipemia.
Correct Answer
C. Notify the ER doctor that the TAT would be increased due to the lipemia.Explanation
Mark did not notify the ER doctor that the TAT would be increased due to the lipemia. This is something that he should have done to ensure that the doctor is aware of the delay in results and can adjust their plans accordingly.Rate this question:
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- 18.
Mark runs a CBC on the DxH, there is a flag on the printout indicating possible platelet clumping. What should Mark do first?
- A.
Request a new specimen.
- B.
Check the specimen for clots.
- C.
Vortex and rerun the specimen on the DxH.
- D.
Verify the platelet count on the smear.
Correct Answer
B. Check the specimen for clots.Explanation
When there is a flag indicating possible platelet clumping on the printout of a CBC run on the DxH, the first step Mark should take is to check the specimen for clots. Platelet clumping can occur due to the presence of clots in the specimen, which can interfere with accurate platelet count results. By checking for clots, Mark can ensure that the specimen is suitable for analysis and determine if platelet clumping is indeed the cause of the flag.Rate this question:
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- 19.
Mark checked the specimen for clots. The specimen did not have any clots so Mark vortexed and reran the specimen on the DxH. The printout still had a flag indicating possible platelet clumps. Mark made a smear and verified on the smear that there were many platelet clumps. What should Mark do now?
- A.
TNP the platelet count result with a comment stating the platelet count appears to be adequate.
- B.
TNP the platelet count and request a new EDTA specimen.
- C.
TNP the platelet count and request a blue top tube for the platelet analysis.
- D.
Notify the nurse that the platelet count cannot be performed due to platelet clumping.
Correct Answer
C. TNP the platelet count and request a blue top tube for the platelet analysis.Explanation
Mark should TNP (do not process) the platelet count and request a blue top tube for the platelet analysis. This is because the specimen has been found to have platelet clumps, which can interfere with accurate platelet count results. By requesting a blue top tube, which contains an anticoagulant called citrate, it can help prevent platelet clumping and provide a more accurate analysis of the platelet count.Rate this question:
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- 20.
Mark received a blue top tube for platelet analysis on the DxH. There are no flags on the DxH's printout. What must Mark do prior to reporting out the platelet count?
- A.
Nothing, since there are no flags the result will autocross.
- B.
Verify the platelet count on a manual smear.
- C.
Multiply the platelet count on the printout by 1.1 to correct for sample dilution.
- D.
Reject the specimen only EDTA specimens can be run on the DxH.
Correct Answer
C. Multiply the platelet count on the printout by 1.1 to correct for sample dilution. -
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Apr 18, 2024Quiz Edited by
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Jun 06, 2012Quiz Created by
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