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Pulse

Pulse

The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
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Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls between...

Increased pulse rate

Increased pulse rate

Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...

Decreased pulse rate

Decreased pulse rate

Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with bradycardia...

Pulse rhythm

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Pulse

Pulse

When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
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Cardiovascular System Abnormal Findings I: Inspection and Palpation

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In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
Abnormal findings observed during an inspection

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Related Experiment Video

Updated: Jun 27, 2026

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

Published on: February 6, 2019

An alcoholic man with an abnormal pulse.

K A Rosenbach¹, R P Shah, H M Adelman

¹University of South Florida, James A. Haley Veterans Hospital, Tampa, USA.

Hospital Practice (1995)

|December 28, 1999

Summary

This summary is machine-generated.

A patient presented with a sore throat and was found to have tachycardia and an irregular pulse. This case highlights the importance of considering cardiac irregularities in patients with unexplained symptoms.

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Area of Science:

Cardiology
Emergency Medicine
Internal Medicine

Background:

Sore throat is a common presenting complaint in emergency departments.
Alcohol intoxication can present with various symptoms and signs.

Observation:

A 47-year-old male with a history of alcohol use presented with a three-day sore throat.
The patient denied fever, nausea, vomiting, diarrhea, rhinorrhea, cough, chest pain, or palpitations.

Findings:

On physical examination, the patient exhibited tachycardia (elevated heart rate).
An irregular pulse was also noted, indicating potential arrhythmia.

Implications:

This case underscores the need for thorough cardiac evaluation in patients presenting with seemingly non-cardiac symptoms, especially in the presence of risk factors like alcohol use.
Unexplained tachycardia and irregular pulse in the setting of a sore throat warrant further investigation to rule out underlying cardiac conditions.