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Related Concept Videos

Measurement of Blood Pressure01:17

Measurement of Blood Pressure

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Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
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During adolescence, individuals experience significant cognitive development that enhances their understanding of others' emotions and thoughts, known as cognitive empathy. This period is marked by an increased ability to adapt to others' perspectives and a more nuanced understanding of others' mental states, a skill that is foundational for social problem-solving and conflict avoidance. The development of cognitive empathy relies heavily on the theory of mind — the...
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Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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Special considerations while measuring pulse01:13

Special considerations while measuring pulse

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Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
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Decreased pulse rate01:14

Decreased pulse rate

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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.
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Disorders of the Autonomic Nervous System01:18

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The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
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Related Experiment Video

Updated: Dec 27, 2025

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
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Syncope in an Adolescent.

Hardik Patel1, Nick Chatla1, Ahmad Khiami1

  • 1Pediatrics, Raleigh General Hospital, Beckley, USA.

Cureus
|February 25, 2020
PubMed
Summary

Community-acquired pneumonia (CAP) can present as syncope, a challenging diagnosis. A thorough patient history and physical exam are crucial for accurate diagnosis in young patients with atypical presentations.

Area of Science:

  • Internal Medicine
  • Pediatrics
  • Infectious Diseases

Background:

  • Syncope is a frequent emergency department complaint requiring extensive workup.
  • Community-acquired pneumonia (CAP) diagnosis can be complex due to varied symptoms and etiologies.

Observation:

  • A previously healthy 14-year-old female presented with syncope after softball practice.
  • The patient's age and atypical presentation, alongside laboratory and imaging findings, complicated the diagnostic process.

Findings:

  • Syncope as a presenting symptom of CAP is a challenging clinical association.
  • Detailed patient and family history, coupled with a thorough physical examination, are vital for accurate diagnosis.

Implications:

Keywords:
community acquired pneumoniamycoplasma pneumoniaesyncope

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  • This case highlights the importance of considering less common presentations of CAP in adolescents.
  • Emphasizes the diagnostic value of comprehensive history taking and physical examination in the emergency department.