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Chapter 7: Diagnosis and Treatment; Surgery. Chapter Objectives. Main components of a patient history. Main methods used in patient examination. Nine imaging techniques. Possible forms of treatment.
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Chapter Objectives • Main components of a patient history. • Main methods used in patient examination. • Nine imaging techniques. • Possible forms of treatment. • Theories of alternative & complementary medicine and some healing practices used in these fields. • Staging and grading as they apply to cancer. • Basic terms for to medical examination, diagnosis & treatment. • Roots and suffixes pertaining to diagnosis and surgery. • Symbols and abbreviations used in diagnosis & treatment.
Diagnosis • Determination of nature and cause of illness • Starts with patient history • Description of symptoms • Past medical history • Family, social history as relevant • Physical examination follows
Physical Examination • Inspection • Visual examination • Palpation • Touching body surface with hands, fingers • Percussion • Tapping body and listening to sounds made • Auscultation • Using a stethoscope to listen to body sounds
Vital Signs • Temperature • Pulse rate • Measured in beats per minute • Respiration • Measured in breaths per minute • Blood pressure • Systolic recorded when heart contracting • Diastolic recorded when heart relaxing
Examination Tools • Ophthalmoscope • For examining eyes • Otoscope • For examining ears • Hammer • For testing reflexes • Sphygmomanometer (blood pressure cuff) • For testing blood pressure
Examination Procedures • Endoscope • Examines body cavities
Examination Procedures (cont’d) • Biopsy • Removal of tissue for microscopic examination • Specimens obtained by: • Needle withdrawal • Small punch • Endoscopy • Surgical removal
Imaging Techniques • Used to produce visual images of body • Most common is Radiography (X-rays) • Best at showing dense tissues • Soft tissues enhanced by contrast mediums • Other methods: • Sound waves • Radioactive isotopes • Radio waves • Magnetic fields
Treatment • Determined if appropriate by diagnosis • May consist as any combination of: • Counselling • Drugs • Surgery • Radiation • Physical therapy • Occupational therapy • Psychiatric treatment • Followed up done with Prognosis (prediction of outcome of disease)
Surgery • One method of treating disease by manual operations • Usually done by cutting an incision into skin • Anesthesia dulls pain • Incision sealed after surgery with sutures, adhesive stripes, staples, skin glue • Operations now performed with laser • Some procedures require cautery
Purpose of Surgery • Treatment • Excision of diseased or abnormal tissue • Also can repair wounds or correct problems • Diagnosis • Remove tissue for lab biopsy • Restoration • To compensate for lost function • Relief • Palliative treatment (therapy to provide relief, not intended as cure)
Alternative and Complementary Medicine • Disease causes have shifted • People looking to other philosophies and cultures • Other philosophies include: • Osteopathy • Naturopathy • Homeopathy • Chiropractic
Alternative and Complementary Medicine (cont’d) • Other treatments include: acupuncture, biofeedback, massage, meditation, herbal remedies, nutritional counselling • Holistic health care emphasizes treating individual as whole with emotional, social, and spiritual needs in addition to physical
Cancer • Several methods to diagnose • Physical examination • Biopsy • Imaging • Laboratory tests • Two methods to classify: • Grading • Based on histologic changes seen through microscope
Cancer (cont’d) • Staging • Procedure for seeing how far tumor has spread • Treatment may involve surgery, radiation therapy, chemotherapy, immunotherapy, hormone therapy
Pretest • Determination of a disease's nature cause is called: (a) prognosis (b) diagnosis (c) titration (d) admission
Pretest Determination of a disease's nature cause is called: (a) prognosis (b) diagnosis (c) titration (d) admission
Pretest • Measurements of the basic functions needed to maintain life, such as breathing and pulse, together are called: (a) respiration (b) health signs (c) vital signs (d) etiology
Pretest • Measurements of the basic functions needed to maintain life, such as breathing and pulse, together are called: (a) respiration (b) health signs (c) vital signs (d) etiology
Pretest • The two phases recorded when measuring blood pressure are: (a) systolic and sinoatrial (b) diastolic and symbiotic (c) superior and inferior (d) systolic and diastolic
Pretest • The two phases recorded when measuring blood pressure are: (a) systolic and sinoatrial (b) diastolic and symbiotic (c) superior and inferior (d) systolic and diastolic