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intro to diagnostic processes, intro to medications, intro to prescriptions
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primary care
first initial point into medicine; ex- pediatrician, family practice
types of primary care visits
preventative care or health maintenance- yearly physical, flu shot; problem specific visits- sick visits; disease monitoring- chronic diseases like diabetes, high cholesterol, high BP; follow up appointments- in hospital for days after surgical reason needs follow up
steps of the diagnostic process
symptoms- subjective, what patient complains of, patient’s experience;
signs- what you find on physical exam, like palpating neck to feel for lymph nodes, listen to lungs, palpate abdomen, look in ears or nose;
diagnostic tests- things that we order;
diagnosis;
treatment/management
setting the stage- patient’s medical history
establish rapport with patient, introduce yourself properly (as a PA student), provide the purpose of the visit; “hello mr./ms./mrs. name. i am lily, a physician assistant student from saint francis university. i will be asking you a few questions and completing a physical exam to help figure out what is causing the problem that brought you into the office today”
chief complaint- patient’s medical history
main reason patient visits and how long it has been going on (subjective); use the 7 factors to gather information for the history of present illness (HPI); gather other pertinent background information (social history, family history, past medical history); patient history is subjective information- what patient tells you (chief complaint, HPI, background info, 7 factors)
the seven factors
chronology (most important)- story of the pain= when it started, where it went, sudden or gradual (ex- abdominal pain x3 days)
setting- location where you were when it started
location- where on body it hurts
quality- descriptive adjective for the discomfort (short, dull, piercing)
quantity- scale 0-10 (0= no pain, 10= worst pain ever)
alleviating and aggravating factors- what makes it better/worse
associated manifestations
performance of a problem specific exam- physical exam
based off the chief complaint; exam findings are objective signs- objective= what provider finds on physical exam, vital signs (BP, HR, temp, SpO2, resp)
systematic physical exam
inspection, palpation, percussion, auscultation
abdominal physical exam
inspection, auscultation, percussion, palpation
diagnostic testing
rapid test, urinalysis, cultures (wound, throat, urine), blood work, imaging (xray, ultrasound, PET scan, MRI, CAT scan), biopsies, endoscopy, EKGs, stress test, basic metabolic panel
why do we order diagnostic tests
support, confirm, rule out
analysis of information
stepwise method for analyzing the information, information is gathered via subjective, objective, and diagnostic studies
analysis of information chain
patient’s history, PE and testing, interpretation, possible causes, further questions, final result= diagnosis; constant reassessment based on new information
analysis and judgement of data
after analyzing the information gathered via the history, physical exam, and diagnostic tests → the provider will develop the assessment (what’s wrong with the patient) and plan (what we’re going to do about it)
primary diagnosis (1° Dx)
after analyzing the information, what is the diagnosis; includes differential diagnosis (DDx) AKA rule outs (R/O)- conditions you need to investigate; ex- primary diagnosis: acute bronchitis R/O bacterial pneumonia
secondary diagnosis (2° Dx)
conditions that the patient has/ known medical problems- already have them when they walk in to clinic; ex- secondary diagnosis: hypertension, well controlled
making a judgement- plan
how are we going to manage the diagnosis and/or symptoms- diagnostic studies (xray, bloodwork), pharmacological treatments (antibiotics), nonpharmacological treatments (don’t need from pharmacy- humidifiers, increase fluids), patient education, follow up instructions
brand name medications
trade name, only the original manufacturer of the particular drug can use this name
generic name
name given to medication that can be used by other manufacturers
generic name for tylenol
acetaminophen
generic name for motrin
ibuprofen
generic name for glucophage
metformin
generic name for coumadin
warfarin
generic name for prilosec
omeprazole
generic name for synthroid
levothyroxine
why do we have two different forms of a medication if it’s essentially the same drug compositions
when new drugs are created, they are patented by the manufacturer- set drug cost with no competition for x number of years because they want to recoup the money they lost from failed drugs, so they make most of their money on daily use drugs; other companies can manufacture the drug once the patent has expired
over the counter medications
medication available to patients at a pharmacy without a provider’s approval
examples of over the counters
claritin, zyrtec, benedryl, mucinex, dramamine, allegra, hydrocortisone, famotidine
prescription medications
medication available only after a provider orders it via a prescription
examples of prescription meds
atorvastatin, metformin, metoprolol, gabapentin, prednisone, amoxicillan, sumatriptan, lisinopril
classification systems for medication
abuse potential drug classification system- schedule I-V, providers require a DEA license to write for controlled substances; schedule I most abuse potential, schedule V least abuse potential
DEA
drug enforcement administration
category x safety in pregnancy classification
contraindicated in pregnancy; do not use; teratogens
examples of teratogens
accutane, warfarin, thalidomide
drug allergy
hypersensitivity- reaction to a drug, can be mild to a severe reaction; hives, rash, anaphylaxis; happens only to certain people
drug side effect
unwanted effect from the drug; adverse symptoms; stomach ache, nausea, headache; can happen to everyone who takes it
why use antihistamine and why use epinephrine for allergic reaction
use epinephrine to reverse life-threatening allergic reaction- acts fast (schedule II); antihistamine used for mild symptoms, works slowly, treat isolated hives, mild itching
what to do when person has allergic reaction of rash on skin
check airway for anaphylaxis, look at lips and tongue
drug administration routes
oral (PO), inhalation, topical, transdermal, parenternal (subcutaneous, intramuscular, intravenous), topical lotion, topical gel, topical cream, topical ointment, suppository
what is a prescription
can be written or electronic, abbreviated Rx (latin symbol for recipe)
elements of a prescription
identifying information about the provider, identifying information about the patient, date of prescription, drug name, drug strength, Sig: (doses, route, frequency, duration), quantity of the medication to be dispensed, signature, refills
elements of a prescription- provider
identifying information about the provider- name, office address, phone number, license #/DEA license if applicable
elements of a prescription- patient
identifying info about the patient- full name, DOB, address
elements of the prescription- drug name
generic or brand name
elements of the prescription- drug strength
the amount of drug in each form
elements of the prescription- Sig=
dose, route, frequency, duration; latin for signetur- “let it be labeled”
elements of the prescription- drug dose
the amount given at one time (ex- one tablet, 5 mL)
elements of the prescription- drug route
orally (po), topically, subcutaneously
elements of the prescription- frequency
how often
elements of the prescription- duration
how long
Sig example
Sig: T (with dot over T) tab po BID x 10 days
elements of the prescription- dispense
quantity of the medication to be dispensed; dose x frequency x duration= total amount to dispense; ex- Sig: T tab po BID x 10 days, 1 × 2 × 10= 20, Disp: #20 (twenty) tablets
elements of the prescription- signature
electronic prescriptions are electronically signed
elements of the prescription- refills
number of times thre patient can fill the prescription before needing re-evaluated by the provider, if no refills- write “zero”, if 2 refills write 2 (two)
medical indication
reasons for use
contraindication
reasons to avoid
precautions
may want to avoid or use with caution
interactions
how the medication interacts with other drugs
brand name for acetaminophen
tylenol
brand name for ibuprofen
motrin
brand name for metformin
glucophage
brand name for warfarin
coumadin
brand name for omeprazole
prilosec
brand name for levothyroxine
synthroid
perenteral
any drug that is not delivered and absorbed through the digestive or integumentary system (sub q, IV, IM)
oral (PO)
by mouth (tablets, capsules, suspension, etc); the most commonly used route
inhalation
medication is inhaled through the mouth and into the lungs where it is absorbed
topical
medication is applied directly to the skin or mucous membranes (creams, eyedrops, suppositories)
transdermal
medication is applied to a patch and sits directly on the skin for a period of time; enters the bloodstream
lotion
high water content, thin consistency, easily spreadable, may contain alcohol for a drying effect (hydroalcoholic)
gel
high water content, usually contains cellulose ethers, dries quickly on skin
ointment
mainly consists of oil, used for dry skin conditions or rashes, forms a greasy residue that is water resistant
suppository
used for localized treatment or if unable to take meds orally- rectal, vaginal