Final Flashcards
what virus causes Epstein Barr Virus?
HHV 4 (human herpes virus 4)
highest incidence of mono is in what age group
15-24 yo
incubation period of mono
30-50 days
highest morbidity in mono
college and military
EBV enters body thru
oral epithelial cell
mono infects what type of cell
B cells
mono causes the release of
cytokines
diagnostic test for mono
heterophile abs
sheep and horse cells
humoral immunity involves
extracellular microbes → bacteria
cellular immunity involves
cellular immunity → intracellular viruses
mono triad
fever
pharyngitis
posterior cervical LAD
mono often starts w.
malaise, HA, low grade fever
kissing tonsils
tonsillar exudates
palatal petechiae
splenomegaly
what type of drug causes rashes in mono pt
penicillins
penicillin induced rash in mono is characterized by
maculopapular
generalized
pruritic
less common findings in mono
+/- jaundice, periorbital edema, CNS findings, myocarditis
mono lab findings
lymphocytic leukocytosis:
absolute count > 4500
differential: >50% → inverted differential
atypical lymphocytes
increase of CD8+ T lymphocytes
Downey cell
what is an inverted differential
lymphocytes > neutrophils
what is a downey cell
reactive, atypical lymphocyte specific to viral infxn
the monospot test uses
heterophile abs
the monospot test is not always ___ or ___
specific; sensitive
how might mono affect LFTs
transient abnormal
ddx for mono
strep pharyngitis
CMV
toxoplasmosis
malignancy
peritonsillar abscess
malignancy
in strep pharyngitis, you will not see
splenomegaly
extreme fatigue
CMV is not is not _
and doe not involve _
exudative
splenomegaly
toxoplasmosis does not involve hepatic or _ symptoms
pharyngeal
malignancy is more likely to be __ than mono
and _ is uncommon
asymmetric
pharyngitis
peritonsillar abscess triad
hot potato voice
trismus
deviation of uvula
pain unilaterally
mono is usually _
and tx is mostly _
self limited
supportive
pharm for mono
tyelonol
NSAIDS
indications for steroids in mono tx
impending airway obstruction
severe thrombocytopenia w. hemorrhage
meningitis
AI hemolytic anemia
sz
are antivirals recommended in mono
no!
contact sports should be avoided for how long in mono
2-3 weeks
complications of mono are rare, but include
splenic rupture
airway compromise
malignancy → lymphoma; nasopharyngeal carcinoma
AI hemolytic anemia
encephalitis
myocarditis
hepatitis
fatigue from mono could last
2-3 months
definition of acute sinusitis
<4 weeks
definition of subacute sinusitis
4-12 weeks
definition of chronic sinusitis
>12 weeks
definition of recurrent acute sinusitis
at least 4 episodes/year w. interim sx resolution
signs of bacterial sinusitis
symptoms >10 days
unilateral maxillary sinus/facial pain
maxillary tooth pain
unilateral purulent nasal d/c
second sickening
fever
characteristics of viral URI fever
only first 2 days w. HA, myalgia
as fever resolves → respiratory s/sx may persist on day 10, but are less severe
acute bacterial sinusitis pathogens
- strep pneumo → 75%
- H.flu
- M. catarrhalis
- S. aureus
what pathogen accounts for 75% of bacterial sinusitis
strep pneumo
tx for bacterial sinusitis
- Augmentin (Amox Clauv) → adults AND kids
- Penicillin allergy → Doxycyline
bacterial sinusitis abx duration - kids
10-14 days
bacterial sinusitis abx duration - adults
5-7 days
sinusitis complications (8)
- preseptal swelling
- orbital cellulitis
- orbital superiosteal abscess
- septic cavernous sinus thrombosis
- meningitis
- osteomyelitis
- subdural abscess
- brain abscess
preseptal cellulitis
swelling, erythema of periorbital area and eyelids
NO proptosis or limitation of eye movement
orbital cellulitis
periorbital swelling
eyelid erythema.
pain w. eye movements
chemosis and proptosis
ophthalmoplegia → paralysis/weakness of eye muscles
diplopia, vision loss
orbital superiosteal abscess
same s/sx as orbital cellulitis plus marked globe displacement
eye complications of bacterial sinusitis from least to most concerning
least → most concerning:
- preseptal cellulitis
- orbital cellulitis
- orbital superiosteal abscess
- osteomyelitis of frontal bone
septic cavernous sinus thrombosis
bilateral ptosis
proptosis
ophthalmoplegia
periorbital edema
AMS
septic appearing
osteomyelitis of frontal bone
Pott Puff tumor
forehead/scalp swelling/tenderness
HA, photophobia
fever, vomiting, lethargy
subdural abscess
fever, severe HA
meningeal irritation
progressive neuro deficits, sz
papilledema
vomitting
brain abscess
HA, stiff neck
AMS, neuro deficits
vomiting
CN III, VI deficits
papilledema
chronic sinusitis may actually be
migraines
migraine pain is usually
unilateral
migraines are concerning if they last for > than
18-24 hr
migraine pain is often described as
throbbing
response to what med can be diagnostic of mirgaines
triptans
4 Phases of a Migraine
- prodrome
- aura
- HA
- postdrome
migraine prodrome can last
a few hours to days
migraine aura can last
5-60 min
migraine HA can last
4-72 hr
migraine postdrome can last
24-48 hr
the longest phase of a migraine is
prodrome
5 symptoms of migraine prodrome
irritability
DPN
yawning
polyruria
nausea
migraine aura - 3 symptoms
- visual disturbances
- temporary loss of sight
- numbness/tingling
migraine HA - 5 symptoms
- throbbing
- drilling
- icepick in head
- burning
- vomiting
- giddiness
- nasal congestion
- neck pain
migraine - postdrome 5 symptoms
- inability to concentrate
- fatigue
- DPN
- euphoria
- lack of comprehension
fewer %age of people experience which phase of migraines
aura
3 abortive migraine meds
order of most to least recommended:
- OTC analgesics → Excedrin is most effective
- Triptans; Ergotamine spray
- ketorolac injxn; ergotamine IV; dexamethsone
chronic migraine is defined as
at least 15 HA/mo lasting 4 hr/day or longer
migraine prophylactic meds
- beta blockers → Propranolol is best
- CCB
- antidepressants → tines and triptylines
- anticonvulsants → Valproic acid, Topamax
- anti-calcitonin gene-related peptide therapy → expensive
- botox
- magnesium
- CBT; acupuncture
best propylactic migraine med for pt w. HTN
beta blocker
best migraine med for pt w. insomnia
amitriptyline
best migraine med for pt who needs to lose wt
Topamax
s.e of Topamax
brain fog
tastes awful
OTC analgesics should be limited to
15 days or less/mo
Excedrin should be limited to
no more than 10 days/mo
which migraine med can cause rebound HA
Triptans
concern for rebound HA when
pt has to take med every day to control HA
CVA that lasts < 24 hr
TIA
occlusion forms locally at ischemic site
thrombotic
clot breaks off from another location and travels to brain
embolic
reversibly damaged brain tissue around ischemic core
penumbra
3 causes of hemorrhagic stroke
- aneurysm
- head trauma
- cocaine
small vessel/lacunar stroke is occlusion of the __ arteries
and is usually caused by __
small
longstanding HTN
Afib can cause __ stroke
embolic CVA → clot forms in heart → travels to brain
scoring system that determines risk for ischemic stroke
CHADS 2
CHADSVASC
CHADS scores of 2 or more indicate
need for anticoagulation
components of CHADS2
CHF (1)
HTN (1)
age > 75 (1)
DM (1)
stroke/TIA (2)
components of CHADSVAS
CHF
HTN
Age >75 yo (2)
DM
stroke/TIA
vascular dz
age > 65-74 (2)
female
symptoms of ACA stroke
contralateral paralysis and sensory loss mostly affecting leg
abulia → apathy
urinary incontinence
gait apraxia
grasp reflex or sucking reflex
symptoms of MCA stroke
hemiparesis primarily affecting face and arm
hemisensory deficit primarily affecting face and arm
gaze preference toward affected hemisphere
aphasia
hemianopsia
+/- apraxia
PCA stroke symptoms
homonymous hemianopsia affecting contralateral vision field
anomic aphasia → difficulty naming objects
alexia w.o graphia → can’t read/write
visual agnosia → can’t see or interpret visual info
contralateral hemisensory loss and hemiparesis
unilateral HA
CN III palsy
balance
which type of stroke is most common
MCA