When a person cuts a finger, nerve impulses travel to the spinal cord along afferent peripheral nerve fibers. What is this process?
Perception
Transduction
Modulation
Transmission
The Correct Answer is D
A. Perception occurs when the brain interprets pain signals and recognizes them as pain. This step happens after the nerve impulses have been transmitted to the brain.
B. Transduction is the first step in the pain process, where painful stimuli (such as cutting a finger) activate nociceptors, converting the stimulus into an electrical signal.
C. Modulation involves the body’s response to pain signals, where descending nerve pathways release substances like endorphins to inhibit pain transmission. This occurs later in the pain process.
D. Transmission is the process of pain signals traveling from the site of injury to the spinal cord and brain via afferent nerve fibers. This step occurs after transduction and allows pain signals to reach the central nervous system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Dysrhythmia. Dysrhythmia refers to an irregular heart rhythm, not necessarily a fast heart rate. Tachycardia can be regular or irregular.
B. Tachycardia. Tachycardia is defined as a heart rate above 100 beats per minute in adults. A pulse rate of 110 to 140 bpm falls within this range.
C. Bradycardia. Bradycardia refers to a slow heart rate (below 60 bpm), which is the opposite of tachycardia.
D. Pyrexia. Pyrexia refers to fever (elevated body temperature), not an increased heart rate.
Correct Answer is D
Explanation
A. 4+. A 4+ pulse is bounding and strong, often seen in conditions like fever, anemia, or fluid overload. This does not match the description of a weak pulse.
B. 3+. A 3+ pulse is stronger than normal but not bounding. This is not considered weak.
C. 2+. A 2+ pulse is normal and easily palpable, which does not indicate the weakened pulse described in the patient.
D. 1+. A 1+ pulse is weak and thready, meaning it is difficult to palpate and easily disappears with slight pressure. This grading is appropriate for a hypotensive patient with poor perfusion.
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