Which method will provide the most accurate measurement of the patient's heart rate?
apical
radial
brachial
popliteal
The Correct Answer is A
A. Apical. The apical pulse, located at the apex of the heart, provides the most accurate measurement of heart rate, especially in patients with irregular rhythms. It is assessed by auscultation with a stethoscope over the fifth intercostal space at the midclavicular line.
B. Radial. The radial pulse is commonly used for routine pulse checks, but it may be less accurate in cases of irregular heart rhythms or weak peripheral circulation.
C. Brachial. The brachial pulse is typically used in infants and for blood pressure measurements, but it is not the most accurate method for assessing heart rate.
D. Popliteal. The popliteal pulse is located behind the knee and is used to assess circulation to the lower extremities, not for measuring heart rate accurately.
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Related Questions
Correct Answer is D
Explanation
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.
Correct Answer is A
Explanation
A. 104.4°F. This temperature is consistent with heatstroke, a life-threatening condition characterized by hot, dry skin, confusion, and tachycardia. Heatstroke occurs when the body fails to regulate temperature, often exceeding 104°F (40°C).
B. 99.2°F. A temperature of 99.2°F is only slightly elevated and does not match the severe hyperthermia expected in heatstroke.
C. 100.8°F. While this temperature is above normal, it is not high enough to indicate heatstroke, which typically involves temperatures above 104°F.
D. 102.2°F. This temperature suggests heat exhaustion, a milder form of heat-related illness, but heatstroke involves higher temperatures exceeding 104°F.
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