FUNDAMENTAL SKILLS
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FUNDAMENTAL SKILLS. CHAPTER 10. Vital Signs. Vital: concerned with or essential to life. Sign: obvious, objective finding or evidence of illness or bodily malfunction. Homeostasis and Methods of Heat Loss. A. All chemical process in the body produce heat as one of the byproducts.
FUNDAMENTAL SKILLS
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FUNDAMENTAL SKILLS CHAPTER 10
Vital Signs • Vital: concerned with or essential to life. • Sign: obvious, objective finding or evidence of illness or bodily malfunction
Homeostasis and Methods of Heat Loss A. All chemical process in the body produce heat as one of the byproducts. • Body must be able to maintain a constant body temperature.
Homeostasis • State of equilibrium = compensation a. Body adjust for changes in internal or external environment. • Hypothalamus • Heat regulating part of the body • Tracks & controls amount of body heat lost • Located within the brain
Homeostasis • 80% of heat loss is through the skin • Convection: Transfer or loss of heat due to circulation or replacement of a surrounding liquid or gas. • Radiation: Transfer or loss of heat from or by its source to the surrounding environment in the for of heat waves or waves • Evaporation: the convection of liquid or solid to a gas
Temperature A. USE THE CORRECT THERMOMETER • Oral • Rectal: generally 1 degree higher than oral • Tympanic : membranes shares the same blood supply as hypothalamus • Axillary: used for people who must breath via mouth or who cannot turn on their side
Temperature • B. Temperature scales • Fahrenheit: most commonly used scale • 320 = freezing • 212o = boiling • Celsius: • 00 = freezing • 1000 = boiling
Temperature • Conversions: • F to C: 5/9(F-32) = Celsius • C to F: (C x 9/5) + 32 = Fahrenheit
Temperature • Factors effecting core temperature • Head injuries • CVA’s (strokes, cerebrovascular accidents) • Extreme environment temperatures • Amount of body fat • Time of day temperature is taken • Disease processes • Brain tumors or brain surgery
PulseCharacteristics • Rhythmical throbbing due to contraction and expansion of artery as wave of blood passes through. • Pulses only in artery • Veins have little pressure and no pulse. • Adult average of 5 liters of blood
PulseLocations • Central: blood flow to the vital organs • Carotid, femoral, apical • Peripheral: flow to skin surface extremities, ears, nose, & face. • Brachial, radial, pedal • Apical – point of maximum impulse
PulseRate • Adult: normal resting 60- 100 beats/ minute • Infants < 1 year = 90 – 140 • Children 1 to 7 years = 80 – 120 • Children > 7 years = 72 - 90 • Factors that may affect rate: • Tachycardia >100 : medications, exercise, anxiety, fear, heart problems, > temperature • Brachycardia <60 well-conditioned athletes, medication, low body temperature
PulseRegularity = Rhythum • Regular vs irregular • Count for full minute
PulseStrength • Weak • Strong • Thready (weak, rapid, diffulcult to count) • Bounding (unusually strong
Respiration & Lung SoundsCharacteristics • Respiration: breathing • Oxygen in Carbon dioxide out • Controlled by Respiratory center • Located in medulla oblongata • Signal from voluntary and involuntary muscles
Respiration & Lung SoundsPhases • External respiration = gas exchange • CO2 of blood exchanged for O2 form inspired air in the alveoli of lungs • CO2 gotten rid of via exhalation • Breathing cycle : active motion
Respiration & Lung SoundsPhases • Internal respiration: exchange of CO2 contained in the cells for O2 in blood. • expiration • 1 respiratory cycle = one inspiration and one exhalation
Respiration & Lung SoundsRates • Premature infants 40 –90 • Newborn infants 30 - 50 • 4 weeks to 12 months 20 – 40 • 2 to 5 years 20 – 30 • 5 to 15 years 20 – 25 • 15 + 15
Respiration & Lung SoundsMeasuring Rates • Abdominal • Apnea • Bradypnea • Cheyne-Strokes • Decreased • Dyspnea
Respiration & Lung SoundsMeasuring Rates • Hyperapnea • Kussmaul’s breathing • Labored breathing • Stertorous • Tachypnea
Respiration & Lung SoundsPatterns • Normal quiet and effortless • Snoring – upper respiratory obstruction • Crackles or gurgling – fluid in passages • Stridor – high pitched noise, squeak + upper respiratory obstruction (laryngeal edema) • Wheeze – Narrowing of passage. • Asculation points
Respiration & Lung SoundsFactors Effecting Patterns • Diseases • Diabetes, kidney abnormalities, lung disease • Medications • Emotions • Injuries • Head, diving accidents, drownings, gun shot
Blood Pressure • Measurement of pressure against walls • Systolic: top number • Refers to the contraction of ventricles • Pressure of blood against arterial wall • Diastolic • Refers to contraction of ventricles • Pressure on wall during relaxation • palpated
Blood Pressure 5. Hypertension • Random readings of or > 140/90 in otherwise health adult • Sign & symptoms • Headaches upon awakening • Visual distrubances • General weakness • Excessive fatigue • CVAs
Blood Pressure • Noninvasive vs Invasive blood pressure • Factors effecting readings -Medication, Exercise, Stress, Insomnia, Pain, atherosclerosis, arteriosclerosis, trauma, fever, head injuries
Weight & Height • Accuracy • Characteristics of weighing • < 2 years on scales w/ ounces baby scale usually w/o clothes • >2 adult scale • Weight conversion Lbs/2.2 = kg • Height = Adult w/o shoes