video corpo

The significance of core temperature
58Pages

{{requestButtons}}

Catalog excerpts

The significance of core temperature - 1

The significance of core temperature – Pathophysiology and measurement metho

Open the catalog to page 1
The significance of core temperature - 3

The significance of core temperature – Pathophysiology and measurement methods

Open the catalog to page 3
The significance of core temperature - 4

THE SIGNIFICANCE OF CORE TEMPERATURE | Published by Dräger Medical GmbH Moislinger Allee 53–55 23558 Lübeck, Germany www.draeger.com Important notice: Due to ongoing research and expanding clinical experience, medical science in in a constant state of change. The authors of this work have taken great care to ensure that the opinions and assumptions presented here, in particular those pertaining to applications and effects, reflect our current level of understanding. However, this does not free the reader from personal responsibility with regard to his or her actions in clinical practice....

Open the catalog to page 4
The significance of core temperature - 5

TABLE OF CONTENTS 1 Preface nature of body temperature 2.1 Temperature and warmth as a prerequisite for life 2.2 Thermoregulation 2.3 Core temperature 3 Hypothermia 3.1 Definition of hypothermia 3.2 Causes and types of hypothermia 3.2.1 Perioperative hypothermia 3.2.2 Therapeutic (protective) hypothermia 3.3 Consequences of hypothermia 3.4 Prevention of and therapeutic intervention in hypothermia 4 Fever and hyperthermia 4.1 Definition of fever and hyperthermia 4.2 Causes and types of fever 4.3 Consequences of fever 4.4 Therapeutic intervention in fever 4.5 Causes and types of hyperthermia...

Open the catalog to page 5
The significance of core temperature - 6

THE SIGNIFICANCE OF CORE TEMPERATURE | 5.5 New technologies 5.5.1 Zero-heat-flux technology 5.5.2 Heat flux/Doppler sensor technology 5.5.3 Thermography 5.6 Experimental technologies 5.6.1 Ultrasonic temperature measurements 5.6.2 Magnetic resonance temperature measurements 5.6.3 Simulated core temperature 5.6.4 Brain temperature tunnel 6 Non-invasive measurement of core temperature using Doppler sonography technology 8 Frequently asked questions

Open the catalog to page 6
The significance of core temperature - 7

1 Preface For the past several decades, the significance of core temperature and the subject of thermal management, i.e. the maintenance, therapeutic adjustment and precise measurement of a patient’s core temperature with regard to anaesthesia and, to a lesser extent intensive care medicine, have not been fully appreciated. In terms of measurable parameters in anaesthesia and intensive care patients, the importance of core temperature was often overlooked. This is partly due to the fact that the parameter core temperature appeared to be somewhat trivial and hardly innovative. The...

Open the catalog to page 7
The significance of core temperature - 8

THE SIGNIFICANCE OF CORE TEMPERATURE | In spite of all these developments which demonstrate the central significance of core temperature in anaesthesia and intensive care medicine, one subject is still often belittled: the measurement of core temperature. Primitive thermometers, the inaccuracy of which has long been shown by a number of studies, continue to be used. Thermoregulatory therapy continues to be practised without measurement of therapeutic success or feedback – active perioperative warming without the use of core temperature measurements. This may be partially due to the fact...

Open the catalog to page 8
The significance of core temperature - 9

2 The nature of body temperature 2.1 TEMPERATURE AND WARMTH AS A PREREQUISITE FOR LIFE Temperature is a physical dimension – and a basic prerequisite for all forms of life. The physical characteristics of matter are temperature- ependent. Even d small variations can cause significant changes, such as those seen during the transformation from one aggregation state to another. The metabolisms of living organisms can be greatly influenced by temperature. Temperatures which are too high or too low can change metabolic rates, perturb organ function and cause tissue damage. Thus, body temperature...

Open the catalog to page 9
The significance of core temperature - 10

THE SIGNIFICANCE OF CORE TEMPERATURE | Fig. 1: Body core and periphery THE NATURE OF BODY TEMPERAT

Open the catalog to page 10
The significance of core temperature - 11

2.3 CORE TEMPERATURE Although temperatures in the peripheral regions of the body and extremities vary depending upon environmental conditions, the body’s core, consisting of deep tissues, internal organs and the cerebrum, remains practically constant under normal conditions. The range of external temperatures at which core temperature can be maintained without the aid of shivering or sweating is known as the thermoneutral zone, and runs between 27 and 32°C for a naked adult human at rest. [2] [5] [6] [7] Survival zone Normothermia Core temperature Thermoneutral zone Ambient temperatur

Open the catalog to page 11
The significance of core temperature - 12

THE SIGNIFICANCE OF CORE TEMPERATURE | THE NATURE OF BODY TEMPERATURE The normal range for core temperature is between 36.5 and 37.2°C, depending on the definition. Core temperature does, however, vary according to the time of day. In this circadian function, it is lowest in the early morning and reaches a maximum in the afternoon. The female menstrual cycle is also associated with regular swings in core temperature. Additionally, physical fitness, acute stress, age, alimentation and sleeping behaviour all influence core temperature. [2] [3] [4] [6] [8] [9] [10] Harmful external influences...

Open the catalog to page 12
The significance of core temperature - 13

Circulatory collapse High fever 36.5°C – 37.2°C Normal temperature range during the day 40°C–42°C Very high fever

Open the catalog to page 13
The significance of core temperature - 14

THE SIGNIFICANCE OF CORE TEMPERATURE | 3 Hypothermia 3.1 DEFINITION OF HYPOTHERMIA Hypothermia refers to the cooling of the body beyond the normal temperature range. In practice, a limit of 36°C is normally accepted. Below this value, organ function begins to deteriorate. Temperatures between 36 to around 33°C are considered mildly hypothermic. The body reacts with thermoregulatory mechanisms such as shivering and vasoconstriction. In addition, symptoms such as increased heart rate (tachycardia), increased respiratory rate (tachypnoea), coordination disturbances (ataxia), apathy, and a...

Open the catalog to page 14
The significance of core temperature - 15

Hypothermia can occur accidentally or as a result of controlled therapeutic intervention (therapeutic/protective hypothermia). Outside the clinical setting, hypothermia is usually the result of an accident in which the victim is exposed to cold over a longer period of time (i.e. cold environments, swimming accidents, falls through surface ice). In the hospital, pharmaceuticals and surgical procedures can cause accidental hypothermia. Although active patient cooling has comparable physiological consequences, it occurs under controlled conditions and its intent is protective or therapeutic in...

Open the catalog to page 15

All Dräger catalogs and technical brochures

  1. vn500

    8 Pages

  2. BiliLux®

    6 Pages

  3. JM-105

    8 Pages

  4. Color Line®

    8 Pages

  5. Movita®

    8 Pages

  6. Recorders

    2 Pages

  7. Autoflow

    32 Pages

  8. Breathing-Book

    80 Pages

  9. Oxyline®

    6 Pages

  10. Breathe easier

    22 Pages

  11. VISTA 120

    8 Pages

  12. CALEO®

    12 Pages

  13. Polaris® 50

    4 Pages

  14. Pendula

    6 Pages

  15. Caleo Effect

    20 Pages

  16. NaNoBLu? 500

    8 Pages

  17. Fabius & More

    52 Pages

  18. Primus®

    8 Pages

Archived catalogs

  1. Movita®

    8 Pages