CCF II Exam 2 Questions & Answers 2024/2025
What are the indications for a lumbar puncture? - ANSWERSAnalysis, measurement, or drainage of CSF, Stage lymphoma, and injections
What are the contraindications for a lumbar puncture? - ANSWERSIncreased intracranial pressure (Papilledema), Infect...
What are the indications for a lumbar puncture? - ANSWERSAnalysis, measurement, or drainage of CSF,
Stage lymphoma, and injections
What are the contraindications for a lumbar puncture? - ANSWERSIncreased intracranial pressure
(Papilledema), Infections, coagulation disorders, and therapeutic anticoagulation (Afib)
Would you want to do a lumbar puncture on a patient who is being treated for A-Fib? Why? -
ANSWERSNo; Anticoagulation therapy is a contraindication
What are the important landmarks for a LP? - ANSWERSL3-4 (Iliac Crests)
At what vertebral level does the spinal cord terminate? - ANSWERSL1-2
What should be done before performing a LP? - ANSWERS1. Review indications/ alternative procedures
2. Gain Consent
3. Review Chart for contraindications (Anticoagulant meds, masses/lesions, infections/ cellulitis)
What are the appropriate sites for a LP? - ANSWERSL3-4 or L4-5 Interspaces
We should treat all CSF as if it is? - ANSWERSHighly infectious
What should we try and prevent by doing a sterile procedure? - ANSWERSIatrogenic infections
In what position should a manometry reading be taken during a LP? why? - ANSWERSPatient on side
(lateral decubitus position) with legs straightened
, If knees are bent it will give a false elevated reading
What should be done if the CSF is slow flowing? - ANSWERSValsalva (Cough, bear down) and reposition
the needle (rotate 90 degrees clockwise)
How many milliliters and tubes of CSF should be collected? - ANSWERS10 mls and 4 tubes
Who should take the CSF to the lab? - ANSWERSThe doctor who collected it
After performing a LP what should we have the patient do and for how long? - ANSWERSLay on back, 45
minutes
What disorder is an exception to the CSF rule of 10mls in 4 tubes? - ANSWERSNormal Pressure
Hydrocephalus
What are the possible complications of a LP? - ANSWERSPost- spinal puncture HA, Bloody Tap,
Hemorrhage, Dysesthesia (Bumped nerve fibers)
What are the normal CSF values for a newborn?
Opening pressure
Protein
Glucose
Cells-
-Leukocytes
-RBCs - ANSWERSOpening pressure: 7-25 cm H2O
Protein: 20-120 ml/dl
Glucose: 2/3 of serum
Cells-
-Leukocytes: 0-10 mm^3
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