MEDICAL
NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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L. 4, 5.
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L. 2, 3
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S. 1 & L. 2.
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T. l2&L. 1.
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S. 3 & L. 4.
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Detailed explanation-1: -A lumbar puncture (LP) or spinal tap may be done to diagnose or treat a condition. For this procedure, your healthcare provider inserts a hollow needle into the space surrounding the spinal column (subarachnoid space) in the lower back to withdraw some cerebrospinal fluid (CSF) or inject medicine.
Detailed explanation-2: -The spinous process of L4 lies along an imaginary line between the top of the posterior superior iliac crests. In a midline insertion (most common approach), the spinal needle first traverses the supraspinous and interspinous ligaments between the vertebral spinous processes, before reaching the ligamentum flavum.
Detailed explanation-3: -A 3.5-inch-long (8.9-cm) LP needle is most often used to perform this procedure in adults; however with the obesity epidemic in the United States, 5 the use of 5-inch-long (12.7 cm) and 7-inch-long (17.8 cm) needles is becoming increasingly common and has been estimated to be necessary in 13.8% of patients.