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Lumbar Puncture Neuro NCLEX-Style Questions

Test your knowledge on lumbar puncture (LP), also called a spinal tap, procedures with this NCLEX-style quiz designed for nursing students and healthcare professionals.

These questions cover key aspects of lumbar puncture care, including needle insertion sites, pre-procedure lab checks, medication precautions, patient positioning, interpretation of CSF opening pressure, and post-procedure interventions.

Don’t forget to check out our free neuro nclex lectures and to review the lumbar puncture nursing notes before taking this quiz.

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Lumbar Puncture Neuro NCLEX-Style Questions

1. During a lumbar puncture, where is the needle typically inserted?(Required)
2. A patient is having a lumbar puncture. Which lab result will the nurse ensure has been collected before the procedure? Select all that apply:(Required)
3. Which medication does a patient need to avoid taking before a lumbar puncture?(Required)
4. The nurse is preparing a patient for a lumbar puncture. Which statement by the patient indicates correct understanding of the proper positioning during the procedure?(Required)
5. The nurse receives report from interventional holding about their patient who just had a lumbar puncture. In the report, it is noted that the patient had an opening pressure of 22 mmHg. How does the nurse interpret this finding?(Required)
6. The patient arrives back to the room following a lumbar puncture. Which action by the nurse is correct?(Required)
7. A patient has developed a post-lumbar puncture headache. What intervention should the nurse implement? Select all that apply:(Required)
8. During a lumbar puncture, after the provider inserts the needle, the patient reports a sudden, sharp shooting pain down the leg. How should the nurse respond?(Required)

Lumbar Puncture Neuro NCLEX-Style Questions

  1. During a lumbar puncture, where is the needle typically inserted?
    A. T3-T4 or T4-T5
    B. C4-C5 or C6-C8
    C. L6-L7 or L7-L8
    D. L3-L4 or L4-L5

The answer is D: L3-L4 or L4-L5. A lumbar puncture is a procedure where a needle is inserted into the lower back between the lumbar vertebrae, usually L3–L4 or L4–L5, to collect cerebrospinal fluid (CSF).

  1. A patient is having a lumbar puncture. Which lab result will the nurse ensure has been collected before the procedure? Select all that apply:

A. Hemoglobin and hematocrit
B. Troponin
C. BUN and creatinine
D. Prothrombin time and international ratio
E. Platelets

The answer is D and E: Prothrombin time and international ratio and platelets. Before the procedure, the healthcare provider should order for blood coagulation labs like PT/INR and platelet count to ensure it’s safe. These levels should within normal range to prevent the development of a bleeding complications.

  1. Which medication does a patient need to avoid taking before a lumbar puncture?

A. Lisinopril
B. Lovastatin
C. Omeprazole
D. Warfarin

The answer is D: Warfarin. This medication works to slow the coagulation process. The patient will need to stop taking this medication before the procedure to ensure a bleeding complication does not occur. All the other medications are okay to take before a lumbar puncture.

  1. The nurse is preparing a patient for a lumbar puncture. Which statement by the patient indicates correct understanding of the proper positioning during the procedure?

A. “I will lie flat on my back with my legs straight.”
B. “I will lie on my stomach with my head turned to the side.”
C. “I will curl on my side with my knees drawn up toward my chest, like a fetal position.”
D. “I will be positioned with my legs raised above the level of my head.”

The answer is C: “I will curl on my side with my knees drawn up toward my chest, like a fetal position.” The correct positioning for a lumbar puncture is either side-lying with knees drawn to the chest (fetal position) or sitting while leaning forward. This opens the intervertebral spaces for needle insertion. As a side note, some patients may be prone with the hip flexion (oblique), especially if it is radiology-guided. The other positions are incorrect and would not allow proper access.

  1. The nurse receives report from interventional holding about their patient who just had a lumbar puncture. In the report, it is noted that the patient had an opening pressure of 22 mmHg. How does the nurse interpret this finding?

A. normal
B. low
C. high

The answer is C: high. A normal opening pressure during a lumbar puncture is 6–20 cm H₂O (≈ 5–15 mmHg). A high opening reading could suggest an increase in intracranial pressure due to tumor, infection, bleeding, pseudotumor cerebri etc. A low opening reading could be due to CSF leak, dehydration, or chronic intracranial hypotension.

  1. The patient arrives back to the room following a lumbar puncture. Which action by the nurse is correct?

A. Assists the patient to the bathroom
B. Educates the patient to avoid caffeine for the next 48 hours
C. Keeps the patient in a flat position for 2 hours
D. Elevates the head of the bed to 30 degrees

The answer is C: Keeps the patient in a flat position for 2 hours. After a lumbar puncture, the patient should remain lying flat for 1–2 hours to reduce the risk of a post-procedure headache caused by cerebrospinal fluid leakage. Elevating the head of the bed too soon (even to 30°) can worsen headache symptoms. Assisting the patient to the bathroom immediately is not recommended (a bedpan should be used). Caffeine can actually help prevent a post-dural headache that can sometimes occur so the patient does not need to avoid it.

  1. A patient has developed a post-lumbar puncture headache. What intervention should the nurse implement? Select all that apply:

A. Encourage the patient to drink fluids
B. Give the patient caffeinated beverages
C. Help the patient ambulate
D. Assist the patient in a supine position

The answers are A, B, and D. A post-lumbar puncture headache results from cerebrospinal fluid (CSF) leakage. The headache often worsens when the patient sits upright, ambulates, or engages in strenuous activity. To help alleviate symptoms, the nurse should encourage the patient to drink plenty of fluids to help replace lost CSF and maintain hydration. Caffeinated beverages may also be recommended, as caffeine causes cerebral vasoconstriction, which can reduce headache intensity. Maintaining a supine or flat position further helps minimize discomfort.

  1. During a lumbar puncture, after the provider inserts the needle, the patient reports a sudden, sharp shooting pain down the leg. How should the nurse respond?

A. Help the patient reposition the leg
B. Reassure the patient that the sensation is temporary
C. Assist the provider in stopping the procedure immediately
D. Assess the affected leg for motor or sensory deficits

The answer is B: Reassure the patient that the sensation is temporary. Shooting pain or tingling down the leg can occur if the lumbar puncture needle brushes a nerve root. This sensation is usually brief and not harmful. The nurse should reassure the patient and encourage them to remain still, allowing the provider to continue the procedure safely. However, if the pain persists or is accompanied by motor or sensory deficits, the nurse should promptly assess the affected leg.

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