Exam 2 Flashcards
Asepsis
sterile
Incubation
period before symptoms
Prodromal
Period before onset of illness; vague symptoms
Clinical illness
symptoms present; illness diagnosed
convalescence
period after illness until feeling normal
infectious disease
term used to describe illness by a pathogen
spread of infection caused by:
world travel; natural disasters; nosocomial; iatrogenic; healthcare institutions (create drug-resistant bacteria); immunosuppressant therapies
primary defense from infection
systems (GI, skin, mucous membranes, etc)
Secondary defenses from infection
immune (specific to antigen/foreign substance) and inflammatory (local) responses
Cell mediated immunity
immune response; T & B cells
3 types of cells in cell-mediated immunity:
Helper T: help B recognize antigen; Suppressor T: prevent rxn to antigen to avoid hypersensitivity; Nat’l Killer T: kill infected cells
Humoral immunity
immune response: antibodies (proteins) that recognize and destroy invaders; created on initial contact by B cells; 5 antibodies
5 antibodies of humoral immunity:
IgM (first to form); IgG (slow to respond but will last for years); IgA (blood, saliva, tears); IgD (serum, role not identified); IgE (environmental; releases histamine)
Active Immunity
immune response; long term acquired immunity; protects from new infxn
Passive immunity
immune response; acquired; from antibodies of placenta, colostrum, or injection/prophylaxis
Natural immunity
immune response; achieved when infected by organism/pathogen
artificial immunity
immune response; vaccines
acquired immunity
immune response; not innate, obtained during life; active/passive
virulence
power of organism to cause disease/ability to survive outside cell; invasiveness; toxigenicity
virus
only replicates in cells of host; packet of genetic material covered in protein coat
bacterium
single cells; can grow outside organism
fungi
eukaryotic; can replicate very rapidly; chitin; hard to destory
parasites
organism lives inside another living creature and takes advantage
order of vital signs
T-P-R-BP
BP normals:
systolic (100-130); diastolic (60-80); pulse pressure (30-50)
auscultory gap
when you don’t hear the first Korotkoff sound
Korotkoff sounds (beats)
1) systolic-loud 2) muffle tap 3) tap 4) diastolic-muffled 5) 2nd diastolic-quiet
Reasons for false low BP:
cuff too big; arm not at heart level; manometer below eye level; let out too fast
Reasons for false high BP:
cuff too narrow; too loose; arm below heart level; manometer above eye level; failure to wait between readings
pulse normals
60-100 bpm (above 100-tachycardia; below 60-bradycardia)
pulsus paradoxus
when pulse relates to breathing
pulsus alternans
every other beat is strong
reason for pulse difference (listen at apical take radial pulse)
perfusion not 100%
normal respiration rates:
12-20/min (bradypnea 20)
Kussmaul
rate and depth of breath decreased
cheyne-stokes
apnea;hypoventilation; hyperventilation assoc’d with head injury
hyperventilation can lead to
hyperalkalosis
hypoventilation can lead to
hypoalkalosis
purpose of oxygen sats
provide info on oxygen saturation of arterial blood
hyperpyrexia
fever with extreme elevation: 106.7F; 41.5C
C to F conversion formula
Temp C (9/5) + 32