Urinalysis and body fluids Exam With Verified Questions and Answers
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Urinalysis and Body Fluids
Institution
Urinalysis And Body Fluids
Urinalysis and body fluids Exam With
Verified Questions and Answers
What are the main physiological responsibility of CSF? - answernutrients and nervous tissue
remove metabolic wastes
produce mechanical barrier to cushion to brain and spinal cord
what are the three layers of meninges that line...
Urinalysis and body fluids Exam With
Verified Questions and Answers
What are the main physiological responsibility of CSF? - answer✔✔nutrients and nervous tissue
remove metabolic wastes
produce mechanical barrier to cushion to brain and spinal cord
what are the three layers of meninges that line the brain and spinal cord? - answer✔✔dura mater
arachnoid
pia mater
how much CSF is produced every hour? - answer✔✔20 mL
***what levels are CSF maintained in adults and children? - answer✔✔adults: 90-150 mL
neonates: 10-60 mL
where is CSF produced? - answer✔✔choroid plexus
two lumbar ventricles and 3rd and 4th ventricle
where does CSF flow? - answer✔✔the subarachnoid space
How does the choroid plexus move CSF? - answer✔✔selective filtration under hydrostatic
pressure and active transport secretion
true or false: CSF is an ultra filtrate of plasma? - answer✔✔false
what is a tight fitting structure of endothelial cells in the choroid plexus that prevents passage of
many molecules? - answer✔✔blood brain barrier
what are examples of disease that disrupt the blood brain barrier? - answer✔✔meningitis and
multiple sclerosis, froin syndrome
- allows wbc's, proteins, and chemicals in CSF,
how is CSF collected? - answer✔✔lumbar puncture
3rd, 4th, and 5th lumbar
which tube in CSF collection is used for chemical and serologic tests, least affected by blood or
bacteria, and should be frozen? - answer✔✔tube 1
which tube in CSF is sent to microbiology and excludes skin contamination and kept at room
temperature? - answer✔✔tube 2
which tube in CSF is least likely to contain cells introduced by spinal tap and must be
refrigerated? - answer✔✔tube 3
which tube is for additional microbiology/serology and is provide better exclusion of skin
contamination and should be frozen? - answer✔✔tube 4
what are terms used to describe CSF? - answer✔✔crystal clear
cloudy
milky
xanthochromic
hemolyzed
if CSF is cloudy, turbid, what is it the result of? - answer✔✔infection
presence of WBC or protein/lipid concentration
what colors are xanthochromic? - answer✔✔pink - oxyhemoglobin
orange - heavy hemolysis
yellow - conversion of of oxyhemoglobin to unconjugated hemoglobin
Grossly bloody CSF can be indication of ... - answer✔✔intracranial hemorrhage
if there is blood in the CSF is evenly distributed throughout the three CSF tubes what is it
indicative of? - answer✔✔intracranial hemorrhage
RBC counts on all three tubes is not always reliable
In a traumatic tap which tube has the heaviest concentration of blood? - answer✔✔tube 1
how long do RBC's remain in the CSF before noticeable hemolysis? - answer✔✔2 hours
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