AANP exam Flashcards
Reticulocytes
In health, make up 1-2 % of total RBCs, increased in response to anema. Absence of reticulocytosis or presence of reticulocytopenia shows inadequate bone marrow response.
Erythropoetin
90 % renal, 10% hepatic, need supplementation when GFR is less than 49
Hemoglobin
normal is 12 for females and 15 for males. Ratio to hematocrit is 1:3
MCV
determines red blood cell size - normal is 80-96
MCH
reflects hgb content and color, normal is 31-37
RDW
variation of RBC size - normal is 11.5-15%
Normocytic, normochromic , normal RDW
acute blood loss, anemia of chronic disease
Microcytic, hypochromic anemia, elevated RDW
Iron deficiency anemia
Microcytic, hypochromic, normal RDW
alpha or beta thalassemia minor
Macrocytic, normochromic, elevated RDW
Vitamin B12 deficiency, folate deficiency, pernicious anemia
Macrocytosis without anemia
use of medications like tegretol, AZT, depakote, dilantin, alcohol
Heart murmur seen in b12 deficiency
Hemic murmur
Most common pathogen in CAP, ABRS, AOM
S. pneumoniae
Common pathogen in ABRS, AOM, CAP particularly with recurrent infections and tobacco use
H. influenzae, more than 30% now pcn resistant via beta lactamase production
First line treatment for Acute Bacterial Rhinosinusitis
Augmentin 500/125 TID or 875/125 BID
Second line treatment for Acute Bacterial Rhinosinusitis
Augmentin 2000/125 BID or doxy 100 mg BID or 200 mg QD
Treatment for ABRS if allergic to PCN, Cephalosporins
Doxy, Levofloxacin, Moxifloxacin
Treatment for ABRS if antibiotic resistance of failed initial therapy
Doxy, levofloxacin, moxifloxacin
Presbycusis
slowly progressive hearing loss that is symmetric and high frequency
1st line controller therapy in allergic rhinitis
Intranasal corticosteriods like Flonase, Nasonex, Nasacort, Omnaris. Side effects are that nasal irritation and bleeding may occur. Optimal efficacy may take 1-2 weeks.
1st line rescue treatment in allergic rhinitis
Nasal antihistamines, esp if there is nasal congestion. sedation could occur. Drugs like astelin, Astepro, and patanase
1st generation oral antihistamines
significant potential to cause sedation and anticholinergic effects so not a first line therapy. Ex. benadryl, chlor trimeton, dimetapp, vistaril.
2nd generation oral antihistamines
These are preferred over because no anticholinergic effects but not as helpful with nasal congestion. Ex. claritin, clarinex, zyrtec, allergra
Oral decongestants
alpha adrenergic agonist so vasoconstrictive. Take caution with the elderly, young children, HTN, bladder neck obstruction, glaucoma, and hyperthyroidism. Ex. sudafed
Nasal decongestants
Alpha adrenergic agonist so vasoconstrictive. Can cause rebound congestion/medicamentosa so limit use to 5-7 days.
Intranasal anticholinergics
reduce runny nose because of drying action. No effect on other nasal symptoms. Dryness can occur. Ex.. Atrovent
Found on fundoscopic exam of person with angle-closure glaucoma
deeply cupped optic disc because of increase intraocular pressure than pushes the optic disc backwards., acute, painful
Amsler grid
screening test for macular problems.
Tonometry
measurement of intraoccular pressure, screen for glaucoma
Presbyopia
Hardening of the lens, close vision problems, adults over 45
Senile cataracts
lens clouding, progressive vision dimming, distance vision problems, close vision usually retained and often improves. Risk factors are tobacco use, poor nutrition, sun exposure, systemic corticosteriod therapy. Potentially correctable with surgery.
Open-angle glaucoma
Painless, gradual onset of increased intraocular pressure leading to optic atrophy. Causes a loss of peripheral vision if not treated. Avoidable with appropriate and ongoing intervention. more than 80% of all glaucoma. Treat with topical miotics, beta blockers, or surgery
Angle closure glaucoma
sudden increases in intraocular pressure. Usually unilateral, painful, red eye, halos around lights, eyeball firm when compare to other. Immediate referral to opthmalogy
Macular degeneration
thickening sclerotic changes in retinal basement membrane complex. Causes painless changes in vision including distortion of central vision. On fundo exam will see drusen (soft yellow deposits in macular region). Risk factors are tobacco use, sun exposure. No treatment available for dry form. Laser treatment or intraviteal injection of antivascular growth factor for wet form
Treatment of suppurative (non gonococcal or chlamydial infection (s. aureas, s. pneumo, H. influ)
Primary: opthalmic with FQ ocular solution.
Secondary: opthalmic treatment with polymixin B with trimetroprim solution or with azithromycin 1%.
Treatment of otitis externa (pseudomonas sp, proteus sp). Acute infection often S. aureus.
otic drops with ofloxacin or cipro with hydrocortisone or polymixin B with neomycin and hydrocortisone. Cleaning of ear canal important. Use 1:2 mix of white vinegar and rubbing alcohol after swimming. Do not use neomycin if eardrum punctured.
Exudative pharyngitis
Caused by A, C, G streptococcus, viral, HHV-6, M. pneumo. 1st line therapy is PCN PO for 10 days or IM for 1 dose if problems with adherence.
2nd line: erythromycin for 10 days; 2nd generation cephalo for 4-6 days; azithromycin for 5 days, or clarithomycin for 10 days.
If vesicular or ulcerative, usually viral.
Chicken pox
2-3 mm vesicles that start on trunk, appear on limbs 2-3 days later. Non clustered and at a variety of stages. Mild to moderately ill.
Small pox
2-3 mm vesicles with generalized distribution without a pattern. All lesions at same stage. Severe systemic illness.
Actinic keratoses
mostly on sunexposed areas. Red or brown, scaly, often tender. Sometimes flesh colored. Can turn into SCC. Can remain unchanged, spontaneously change or progress. Can treat with topical 5-FU, 5% imiquimod cream, photodynamic therapy with topical acid. Can do cryosurgery, laser resurfacing, chemical peel.
Basal Cell carcinoma
more common,, sun exposed areas, arise de novo, papule, nodule with or without central erosion, pearly or waxy appearance, telangiectasia, low mets risk.
Squamous cell carcinoma
less common, sun exposed areas, can arise for actinic keratoses or de novo, red, conical hard lesions with or without ulceration, less distince borders, more chance of mets especially if located on lip, oral cavity, or genitalia.
psoriasis tx and location
vitamin D derivative cream, anterior surface of knees
scabies tx and location
permetherin lotion, over waist band area
Verucca vulgaris treatment
Imiquimod cream
Tinea pedis tx
Topical ketoconazole
Rosacea tx
Topical metronidazole
Keratosis pilaris tx
ammonium lactate lotion
Eczema location
antecubital fossa
Pityriasis rosea location
usually proceeded by a herald patch on the trunk
Acanthosis Nigrans
hyperpigmented plaques with a velvet like appearance at the nape of the neck, axillary region, and groin. Check fasting BG.
Contact dermitis
intensely pruiritic rash on both hands and right cheek. Scattered vesicles, small areas of crusting.
Bactrim
best choice in antimicrobial therapy for a skin and soft tissue infection likely caused by MRSA.
Brown Recluse spider bites
Central blistering with surrounding gray to purple discoloration at bite site. Surrounded by ring of blanched skin surrounded by large area of redness.
TSH
normal level is 0.4-4.0. Reflects anterior pituitary lobe’s ability to detect amount of circulating free thyroxine.
Free T4
Normal level is 10-27. Unbound metabolically active portion of thyroxine.
Total T4
Normal level is 4.5-12.0. Reflects the total fo protein bound and free thyroxine.
Free T3
Normal level is 3.5 to 7.7. unbound metabolically active portion of triiodothyronine (T3). Is about four times more metabolically active.
Total T3
Noraml is 95-190. Reflects the total of the protein bound and free triiodothyronine.
Untreated hypothyroidism
low free T4 and high TSH. Give synthroid by dosing by weight, using ideal body wt in obesity, actual in underweight. 1.6 mcg/kg/day in adults, 4.0 mcg/kg/day in kids, 1.0 mcg/kg/day in elderly. 50% increase during pregnancy so send to high risk OB. Increase dose by 33% or more as soon as pregnancy is confirmed. Check TSH every 6-8 weeks or 8-12 weeks.
Untreated hyperthyroidism
High free T4 and low TSH. treat with beta adrenergic antagonist with B1,B2 blockage such as propranolol to counteract tachycardia and tremor. Use PTU or tapazole. Radiactive iodine tx.
Subclinical hypothyroidism
High TSH, normal free T4. Recommend tx of people with TSH more than 5 if the patient has goiter or if thyroid antibodies present. Presence of sxs compatible iwth hypothyroidism, infertility, pregnancy, or imminent pregnancy would favor tx.
Evaluation of thyroid nodule
Risk of malignancy if 5%. Hx of head or neck irradiation, localized pain, dysphonia, hemoptysis, regional lymphadenopathy, or a hard, fixed mass should raise suspicion. Initial testing with TSH measurement. A hot nodule has low risk of malignancy. Fine needle aspiration advised regardess of TSH results.
Red flag onset of headache
Sudden, abrupt, “thunderclap” headache is suggestive of subarachnoid hemorrhage. Headache with exertion, sex, coughing and sneezing is suggestive of increased cranial pressure.
Tension type headache
last 30 minutes to 7 days but usually 1-24 hours; pressing, nonpulsatile pain, mild to moderate intensity, bilateral, Can have 1 of the following characteristics: nausea, photophobia, phonophobia.
Migraine without aura
last 4 to 72 hours, unilateral, moderate to severe with pulsating, aggravated by normal activity, nausea, ,vomiting, photophobia, phonophobia,
Migraine with aura
focal dysfunction of cerebral cortex of brain stem causes more than 1 aura symptom; develop over 4 mins. Sxs include feeling of dread or anxiety, unusual fatigue, nervousness, GI upset, visual or olfactory alteration. Should not last more than 1 hour.
Migraine specific meds
triptans, ergot deriviatives. Caution about pregnancy, CVD, uncontrolled HTN due to vascular effects.
Prophylactic “controller meds” for HA
Beta blockers like propranolol, CCBs, TCAs, antieleptics like gabapentin, depakote, topamax), lithium for cluster. Need these if use any product more than 3 times a week, have more than 2 migraines a month with disabling sxs more than 3 days, poor sx relief from other txs, present of other conditions like HTN, hemiplegic or basilar migraines.
Use MRIs for
hemorrhage of days to weeks duration, AV malformation, carcinomatous meningitis, tumor, posterior fossa lesions
CT without contrast
acute or chronic hemorrhage, edema, atrophy, ventricular size
CT with contrast
tumor, abscess
GERD
Eliminate offending meds: smooth muscle relaxers like CCBs, theophylline, nitrates, estrogen, progestin.
Treat with H2RAs like pepcid, zantac. These are considered first line acid suppression therapy. Proton pump inhibitors are better than H2RAs at suppressing post-prandial acid surge. Protracted use association with B12, Ca, and Fe malabsorption.
Alarm findings may warrant endoscopy: dysphagia, bleeding, wt loss, odynophagia
GERD presentation
dyspepsia, chest pain, postprandial fullness, chronic hoarseness, sore throat, cough, wheezing.
Nikolsky’s Sign
positive when slight lateral pressure on the skin results in epidermal exfoliation.
Markle’s Sign
pt stands on tiptoes and falls back on heels. Positive if abdominal pain increases and localized with the maneuver and is suggestive of peritoneal inflammation.
Blumberg’s Sign
Gently and deeply palpate an area of abdominal tenderness then rapidly release the pressure. Pain is worse with release, indicating abdominal wall or peritoneal inflammation. Rebound tenderness.
Murphy’s Sign
Painful arrest of inspiration triggered by palpating the edge of inflamed gallbladder.
Erosive gastritis
NSAID use, intermittent nausea, burning, and pain limited to upper abdomen, often worse with eating. Tender at epigastrium, LUQ, hyperactive bowel sounds.
Acute Pancreatitis
drinks alcohol, acute onset of epigastric pain radiating to the back with bloating, nausea, vomiting. Epigastric tenderness, hypoactive bowel sounds, abdomen distended and hypertympanic
Duodenal ulcer
history of intermittent upper abdominal pain described as burning, gnawing pain about 2-3 hours . Relief with food, antacids, Awakening at 1-2 am with sxs. Tender at epigastrum, LUQ hyperactive bowel sounds.