The patient has a spinal anesthetic block to the T-10 level. Which landmark is associated with T-10?

Knee

Groin

Axilla

Umbilicus

Answer and Explanation

The Correct Answer is D

A. Knee: The dermatomes associated with the knee and lower extremities are located in the lumbar and sacral regions, specifically L-3 and L-4. A block at the T-10 level would not extend far enough inferiorly to provide anesthesia to the knee. It is not the correct landmark for thoracic segmental mapping.

B. Groin: The inguinal or groin region is primarily innervated by the L-1 spinal nerve. While a T-10 block provides anesthesia to the mid-abdomen, it is superior to the dermatomal level required for groin procedures. Landmarks for L-1 are found significantly below the umbilical line.

C. Axilla: The axillary region corresponds to the T-1 and T-2 dermatomal levels of the upper thoracic spine. A spinal block at T-10 is much lower on the trunk and would not provide any sensory or motor impairment to the underarm area. This landmark is closer to the brachial plexus.

D. Umbilicus: The tenth thoracic spinal nerve (T-10) provides sensory innervation to the skin at the level of the umbilicus. This is a standard clinical landmark used by anesthesiologists and nurses to verify the height of a spinal or epidural block. It is the most reliable topographical reference for this nerve.

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Free Nursing Study Resources

Correct Answer is D

Explanation

A. Document muscle testing as 4/5: Manual muscle testing evaluates the strength of a muscle group against resistance or gravity. This procedure is distinct from the assessment of joint mobility and range of motion. It does not address the underlying etiology of the restricted elbow extension.

B. Attempt passive ROM to bend the left arm: This action assesses flexion rather than the extension deficit noted in the clinical stem. Flexion involves decreasing the angle between the humerus and the ulna. The nurse must address the specific limitation identified during the active assessment phase.

C. Recommend rest, ice, compression, elevation: This therapeutic protocol is utilized for managing acute musculoskeletal injuries and inflammation. It represents a clinical intervention rather than a diagnostic assessment step. The nurse must first complete the physical examination before determining the appropriate treatment plan.

D. Attempt passive ROM to straighten the left arm: Passive range of motion helps differentiate between muscle weakness and joint or soft tissue contractures. Straightening the arm specifically evaluates the same plane of movement where the active limitation was observed. This determines the true degree of articular restriction.

A. Fluid in the knee joint B. A loose tendon C. A bone spur D. Crepitation

Correct Answer is D

Explanation

A. Fluid in the knee joint: A joint effusion typically presents with swelling, fluctuance upon palpation, and a positive ballottement test for the patella. While it causes discomfort and limited range of motion, it does not produce a distinct grating sound. It involves fluid accumulation rather than mechanical friction.

B. A loose tendon: This is not a standard clinical finding as tendons usually undergo rupture, strain, or inflammation (tendonitis). A loose tendon would cause joint instability or weakness rather than an audible crunching sound upon kneeling. It does not explain the mechanical noise described by the patient.

C. A bone spur: Osteophytes contribute to joint degeneration and pain in osteoarthritis but do not exclusively produce the characteristic audible crunching. While spurs represent structural damage, the sound itself is a result of the rubbing of surfaces. The question asks for the name of the sound.

D. Crepitation: This term describes the palpable or audible crunching and grating sound produced when roughened articular surfaces rub together. It is a classic clinical sign of osteoarthritis as the protective cartilage between the femur and patella diminishes. It indicates mechanical friction between the weight-bearing surfaces.

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The patient has a spinal anesthetic block to the T-10 level. Which landmark is associated with T-10?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

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Correct Answer is D

Explanation

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