AdvMS Cardiac and Fundamental Peds Flashcards
peaked T waves occur in
hyperkalemia
PR interval represents
time for impulse to travel from SA node to ventricular depolarization. Prolongation indicates delay in AV function.
Normal PRI
0.12-0.20 seconds
QRS interval represents
time required for ventricular depolarization
normal QRS interval
0.04-0.10 sec or < 0.12 sec
RR interval represents
regularity of rhythm
EKG small square
0.04 sec (1mm)
EKG large square
0.2 sec
EKG 5 large squares
1 sec
EKG 5 large squares
1 sec
QRS interval measured
from first downturn of Q until reaches baseline after S (J-point)
ST segment measured
from return to baseline after S (J-point) to beginning of T. Should be on isoelectric line, elevation or depression d/t cardiac ischemia/MI
to calculate HR on EKG strips
count # or R waves on a 6-second strip (30 large boxes) and multiply by 10
Best for irregular rhythms
regular rhythm, rate 40-60, normal PRI and QRS
sinus bradycardia
causes of sinus bradycardia
vagal stimulation (vomiting/straining)
MI, IICP, uremia
Dig toxicity, BBs, CCBs
sinus bradycardia treatment
none unless symptomatic Atropine IVP (to decrease vagal stimulation), withhold meds, PM
regular rhythm
HR 100-160
normal PRI and QRS
sinus tachycardia
causes of sinus tachycardia
fever, blood loss, anxiety, HF, meds
Do not ignore, treat cause!
p wave is early, abn in size, shape or direction and sometimes hidden in preceding t wave
PACs
causes of PACs and tx
caffeine, nicotine, alcohol
CHF, MI, hypoxia
emotion, can occur in normal hearts
not treated but watch, can signal future arrythmia
causes of PACs and tx
caffeine, nicotine, alcohol
CHF, MI, hypoxia
emotion, can occur in normal hearts
not treated but watch, can signal future arrythmia
atrial rate 250-400, ventricular rate varies with number of impulses that make it through to AV node
Sawtooth wave forms
Aflutter
“flutter” waves
causes of Aflutter
CHF, MI, CAD, cardiomyopathy, hypoxia, thyrotoxicosis, electolyte imbalance
Aflutter/Afib tx
Dig or Verapamil to convert to A fib, which is easier to treat
RFA (ablation), cardioversion, BBs, dofetilide, ibutilide, IV adenosine or amiodorone
grossly irregular rhythm (unless very rapid)
atrial rate unmeasurable (400+), ventricular rate varies with impulses conducted through to AV node. Wavy deflections called f waves, varying rhythm and shapes. PRI unmeasurable, QRS normal
Afib
causes of Afib
CHF, MI, CAD, after OHS heart is irritated, pericarditis, heart valve disease, hyperthyroid, hypoxia
TEE before cardioversion for afib because
check for clots that could be dislodged once sinus rhythm is restored
TEE before cardioversion for afib because
check for clots that could be dislodged once sinus rhythm is restored
conplications due to afib
increase risk for clots (**CVA), cardiac output is decreased
BIGEMINY
every other beat is a PVC
early, wide QRS that differ from the QRSs of the underlying rhythm
PVCs
causes of PVCs
hypoxia, MI, hypokalemia, hypomagnesia, acidosis, exercise, Dig toxicity, hyperthyroidism, caffeine, CVADs, idiopathic
Regular rhythm, rate 140-250
no visible p waves, hidden in QRS
wide QRS
Vtach
causes of Vtach
same as PVCs but more dangerous because of the decrease in CO and tendency to develop into Vfib
Vtach tx
with pulse: meds (Lidocaine IVP, IV amio)
pulseless: CPR, defib starting at 50j, ICD
chaotic rhythm
rate=0 because no QRS complexes
no p waves, just “fine” or “coarse” deflections
Vfib
Vfib treatment
CPR, defibrillation
causes of Vfib
MI, CHF, CAD, ischemia with increased catecholamine levels (shock)
cardiomyopathy, electrolyte imbalance, etc.
most common cause of sudden cardiac death
Vfib
regular rhythm and p waves but prolonged PRI, normal QRS (can be wide sometimes with DIVC)
First degree Heart Block
DIVC=delay in ventricle
general causes of heart block
MI (can happen initially but then go away)
Dig, BBs, CCBs
treatment of first degree heart block
none, but watch for progression of heart block
regular atrial rhythm but irregular ventricular
more p waves than QRS waves
PRI progressively lengthens until a P wave occurs without a QRS, pause follows dropped QRS
Second degree heart block Type 1: Wenckebach
regular atrial rhythm, ventricular rate less and will depend on the number of impulses conducted–NO WARNING of a dropped beat, less QRS waves than p waves
Second degree heart block type 2:Mobitz II
less common but more serious than Wenchebach
high mortality rate if this is associated with acute MI; pt needs pacemaker and atropine to increase heart rate
Second degree heart block type 2:Mobitz II
regular atrial and ventricular rates but they beat independently of each other. No consistent PRI, some p waves hide under QRS (unique to this arrythmia)
Third degree Heart block
posterior fontanel closes by
2-3 mos
posterior fontanel closes by
2-3 mos
anterior fontanel closes by
18 mos
vaccines at 2,4,6 mos
Hep B Hib Prevnar RV IPV Dtap at 6 mos add Flu
rooting, palmar grasp, tonic neck (fencer) and Moro (startle) reflexes present
birth-4mos
plantar grasp reflex present
birth-8mos
Babinski reflex present
birth-1yr
rolls front to back by
5 mos
rolls back to front by
6 mos
crawls, crude pincer grasp and pulls to stand/stands holding on by
9 mos
fontanels should be
flat.
sunken=dehydration
bulging=IICP
uses cup and spoon, stacks two blocks by
15 mos
starting to walk independently by
12 mos
sits unsupported by
7-8 mos
Ibuprofen only if child is
6 mos+
object permanence by
9 mos
walks up and down stairs by
2 years
jumps with both feet, stands on 1 foot by
2 1/2 years
preoperational thought
2-7y
egocentric, only understands own viewpoint
domestic mimicry
concrete operations
7-11 yrs
logic, sort and classify
take things literally
vaccine at 15-18 mos
Dtap
vaccines at 1 year
MMR varicella Prevnar Hib HepA (MVP-HH)
1st teeth around
6 mos
this many teeth by 1 yr
6-8
cooperative play and pretend play
preschooler (3-6)
vaccines at 4-6y (school shots)
MMR
varicella
IPV
DTap
psychosocial stage of preschooler
Initiative vs. guilt
need to try new things, develop conscience, advance initiative while respecting others
psychosocial stage of school age child
industry vs. inferiority
motivated by tasks that increase self-worth, need to develop competence
vaccines at 11-12y
Tdap
HPV (series of 3)
Menactra
vaccine at 16-18
Menactra
definition and dx FTT
inadequate growth due to inability to obtain or use calories
<5th percentile of weight for age
preconventional moral dev
r/t consequences
no concept of moral behavior
conventional moral dev
obey rules, be nice, good behavior is what is approved of by the group; conformity and loyalty
postconventional moral dev
abstract ethical universal principles; correct behavior is defined by individual rights and societal standards
triple birth weight by
12 mos
double birth weight by
5-6 mos
double birth weight by
5-6 mos
BMI screening is done ages
2 and up
obese
> 97th percentile for age and gender BMI
overweight
> 95th percentile for age and gender BMI
s/s FTT besides weight
developmental delays
apathy, poor hygeine,
**withdrawn behavior
avoid eye contact, minimal smiling, stiff or flaccid
most important in tx of FTTq
same nurses to do feedings, in a quiet calm environment. face to face contact
lead checked at
12 and 24 mos
acceptable lead level
<10
to combat Pb retention, feed child a diet high in
Fe and Ca
compete with Pb for storage in bones.
research validated pain scale for children 4+
Faces scale
research validated pain scale for ages 3 mos-7yrs for kids that can’t express their pain
FLACC scale Face Legs Activity Cry Consolability
prevent and manage opioid AEs, such as
n/v
constipation
pruritis
sedation
rear facing car seat is recommended until
2 years
booster seat recommended until
80 lbs. or 4” 9’
count RR on infant
1 full minute due to irregularity
order of VS for infant, child
least invastive to most RR pulse BP temp
tuft of hair or dimple at base of spine could signify
spina bifida
impetigo
superficial skin infection with honey-colored crusts, caused by GABHS or Staph/MRSA
impetigo
superficial skin infection with honey-colored crusts, caused by GABHS or Staph/MRSA
impetigo treatment
mupirocin ointment (Bactroban) more serious, 1st gen CS
resembles a “spider bite” that won’t heal
CA-MRSA
CA-MRSA Tx
TMP-SMZ (Bactrim), clindamycin, doxycycline
CA-MRSA Tx
TMP-SMZ (Bactrim), clindamycin, doxycycline
thrush tx
nystantin swish after feeding
boil nipples/pacis
treat bf mom
kids often get this from farm animals
tinea corporis (ringworm)
ringworm appearance on body
well-defined circle of red bumps, skin in center of circle normal tone
treatment for tinea capitis
Griseofulvin PO 3-6 mos
check LFTs q 4-6 mos
tinea versicolor tx
Selsun Blue (SeS)
recurrent varicella viral infection causing lesions on oral mucosa, lips, and eyes
Herpes Simplex
viral-induced epithelial tumors (HPV)
warts
benign viral skin infection due to a contagious pox virus; causes dimpled bumps
molluscum contagiosum
scabies
highly contagious infection of skin by itch mite (Sarcoptes scabiei)
scabies tx
Elimite cream neck to toes 8-12h, then shower
wash bedding
no sunscreen until
6 mos
rose-coored, flaking, self-limiting viral rash with a “herald patch” and symmetric “Christmas tree” pattern
Pityriasis Rocea
chronic skin disorder of remissions and exacerbations causing silvery scales
psoriasis
atopic dermatitis
excema
chronic superficial inflammation and itching
r/t allergens (often milk)
cheeks–creases of elbows, wrists, and knees
skin cream w/in 3 min of bathing
with any CVAD there is increased risk of
infection–use good hygiene and practice
a CVAD in an IV catheter with the tip in the
SVC, near RA
a CVAD in an IV catheter with the tip in the
SVC, near RA
CVAD with a shorter dwell time and increased risk of complications, used in emergent situations, can be inserted at bedside
non-tunneled
CVAD placed surgically, longer dwell time (indefinite) lower incidence of infection and can be repaired
tunneled
CVAD with indefinite dwell time, no site care when not in use, 1-2000 punctures; implanted in subq
implanted port
dwell time of PICC
several months to 1 year
catheter of CVAD doesn’t go all the way into the SVC
midline catheter
pt position for removal of CVAD
supine, flat
pt-bear down as catheter withdrawn
pressure to site
s/s of SVC syndrome
periorbital/facial edema
JVD, HA
Myoglobin test usefulness
Useful in r/o acute MI if absent; Peaks in 12h
CK-MB
Indicator of acute MI; peaks in 24h
Total troponin
Begins 3-5h
Peak 24-48 h
Lasts to 21 d
Troponin levels
Normal: 0- 0.10
Ischemia: 0.5-1.0
MI: 1+