Tobramycin Levels Obtained from Central Venous Access Devices

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Contact Hours: 1.4 and 75 Minutes Expiration Date: December 31, 2010
CNE Fee: PN Subscriber - $10
Nonsubscriber - $15
Postest Code: J808

OBJECTIVES

  1. Discuss the importance of understanding the issues affecting the accuracy of medication blood levels.
  2. Describe the factors that influence tobramycin levels obtained from CVADs.
  3. Identify opportunities for pediatric nurses to keep current on medication issues.

POSTTEST INSTRUCTIONS

  1. Select the best answer and check the corresponding box on the answer form. Print the test questions as your record.
  2. Complete the answer form and required information requested below.
  3. Submit the online answer form.
  4. Test must be summbitted by December 31, 2010. If you pass the test (70% or better), a certificate for 1.4 contact hours and 75 minutes will be awarded by Anthony J. Jannetti, Inc. Please allow 6-8 weeks for processing. For recertification purposes, the date that contact hours are awarded will reflect the date of processing.

Answer Form

*denotes required fields

*1. Tobramycin is used in the treatment of cystic fibrosis (CF) exacerbations because:
a. patients with CF are often colonized with Pseudomonas aeruginosa.
b. tobramycin is an oral medication.
c. antibiotics are not effective treatment for patients with CF.
d. drug levels do not need to be obtained when using tobramycin.
e. none of the above.

*2. Which of the following statements about tobramycin levels obtained from a CVAD is true?
a. Tobramycin levels are obtained during administration of the drug.
b. Accurate peak tobramycin level scan be obtained from a CVAD if an appropriate saline flush isused.
c. Accurate peak tobramycin levelscan be obtained from a CVAD regardless of how they areobtained.
d. Accurate peak tobramycin levelscan never be obtained from a CVAD regardless of how they are obtained.
e. Tobramycin levels do not need tobe obtained during therapy.

*3. The accuracy of the tobramycin levels obtained from the CVAD in Mogayzel and colleagues’ study was determined by?
a. Comparison to the hematocit
b. Frequency of the tobramycin dosing
c. Comparison to tobramycin levels obtained by venipuncture
d. Multiplying the level by 25
e. None of the above

*4. Which of the following statements is true?
a. Trough tobramycin levels obtained from a CVAD are always accurate.
b. Obtaining trough tobramycin levels are a waste of time and money.
c. The goal of therapy is to obtain the highest possible tobramycin trough level.
d. Trough tobramycin levels obtained from a CVAD are sometimes inaccurate but this does not usually lead to inappropriate clinical decision making.
e. None of the above.

*5. The study by Mogayzel et al. demonstrated that:
a. An inadequate saline flush volume leads to inaccurate tobramycin levels obtained from CVADs.
b. Blood from CVADs can be used to obtain tobramycin levels if an appropriate protocol is followed.
c. Peak tobramycin levels are more susceptible to error when obtained from a CVAD.
d. A larger saline flush volume improved the accuracy of tobramycin levels obtained from CVADs.
e. All of the above.

Evaluation

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1. The objectives relate to the overall purpose/goals of the education activity.
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2. The activity met the stated objectives.
 
 
 
 
 
  a. Discuss the importance of understanding the issues affecting the accuracy of medication blood levels.
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  b. Describe the factors that influence tobramycin levels obtained from CVADs.
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  c. Identify opportunities for pediatric nurses to keep current onmedication issues.
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3. Home study format was appropriate.
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4. The content was relevant to my practice.
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5. The content met my needs.
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6. How much time was used to complete reading assignment and posttest:
a. Less than 1 hour
b. 1-2 hours
c. 2-3 hours
d. 3 hours or more
Comments

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