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Pediatrics Exam 2
Respiratory Exam on Pediatrics
Question | Answer |
---|---|
Incubators (aka isolettes) | Temp lvls= 36.5C, FiO2 about 25-40%, Hazard: More difficult accessing baby |
Internal Thermal Gradient (ITG) | Difference between core temp and skin temp, Preemies have less ability to maintain ITG due to: Large skin surface area, Thin skin, Less brown fat, Can’t take in enough calories to produce heat, Response to cold impaired by hypoxia |
SXN indications | Lack of effective cough (weakness, paralysis), Cilia not fully developed, Diseases indicating clearance (RDS, BPD, MAS), Excessive secretions, Prophylactic (to avoid reintubation), Sputum sample |
Umbilical Cord ABGs | Artery: pH= 7.20-7.30, CO2= 43-53, O2= 12-24 Vein: pH= 7.25-7.35, CO2= 33-43, O2= 22-34 |
O2 Devices | NC, Mask, Tent, oxyhood, incubator |
SXN Hazards | Bradycardia, Hypoxemia, Mucosal damage, Increased ICPs, Atelectasis, Accidental Extubation, Infection, Vagal stimulation |
Neonatal Arterial Blood Gases | Method and area of collection depends on age of child, Scalp pH, Cord gas, Umbilical artery catheter • Radial artery catheter • Arterial puncture • Capillary sticks |
O2 Hazards | Retinopathy of prematurity (Blindness caused by retinal vasoconstriction, Prevent by keeping PaO2 60-80 and SpO2 87-92%), O2 toxicity-Leads to BPD, Cerebral vasoconstriction-Less blood flow to brain, Fire hazard-No hot wheels or metal toys |
Oxyhood | Hood only goes over baby’s head to shoulders, connects to aerosol system via o2 blender, Provides Pt access, Liter flow= 7-10 LPM to avoid CO2 build up, FiO2 analyzed close to baby’s head for accuracy, FiO2 range= 21-100% |
Nasal Cannula | 0.25-6 LPM (NL range), Blended O2 used in nursery, May not be tolerated by toddler |
Acceptable PaO2 | in neonates= 40-70 |
Hypoxemia | Heart rate changes (Tachycardia in kids/adults, Bradycardia in newborns), Nasal flaring, Tachypnea, Decreased level of activity, Grunting, Low saturations |
Bilirubin Levels | <5 no Tx, 3-9 Phototherapy (sunlight) diaper only, 10-14 phototherapy Exchange transfusion if bilirubin rises quickly, 15-19 Exchange transfusion if levels elevated in <48 hrs Phototherapy if >48 hrs, >20 Exchange transfusion |
Hypothermia | 1st response to hypothermia is peripheral vasoconstriction, Shunts blood away from skin to maintain ITG, Shunts blood away from extremities to preserve core organs |
Sodium | Hypernatremia (high sodium)= Caused by: Insensible water loss, too much sodium intake, Hyponatremia (low sodium)= Caused by: inadequate sodium intake, renal insufficiency, diuretics |
Potassium | Hyperkalemia (high potassium), Caused by: acute renal failure, Baby may need dialysis to remove K+, Hypokalemia (low potassium)= Caused by: Diuretics, gastric losses |
Calcium | Hypercalcemia (high calcium)= Caused by: giving too much calcium, Hypocalcemia (low calcium)= Baby may be jittery, have seizures, apnea, irritability, Treat w/ Ca+, Caused by: Mom diabetic, Phototherapy, Renal disease, IV lipid infusion |
Magnesium | Hypermagnesia (high magnesium)= Secondary to mom being given magnesium during labor, Magnesium stops labor… passes on to baby via placenta (baby may be apnic and require ventilation)Hypomagnesia (low magnesium)= Associated w/ hypoglycemia |
4 ways to loose heat (ETG) | Radiant: Loss of heat to things cooler around baby (but not in contact with), Conductive: Loss of heat to cooler things in contact w/ baby, Convective: Loss of heat through air passing around baby, Evaporative: Water leaving surface of skin |
HR | Neonate= 110-160, Infant= 100-120, Child= 80-100 |
RR | Neo= 30-60, Inf= 25-50, Child= 15-30 |
BP | Neo= 60/40 (60-80/40-50) (>60 systolic), Inf= 70-95, Child= 80-110 |
APGAR | Assesses need for resuscitation |
Ballard | Assesses gestational age by maturational examination |
Hemoglobin | 14.5-18 g/dl |
Hematocrit | 45-56 g% (3x Hgb) |
Thermoregulation | Balance between heat production and heat loss, Around 26-30 weeks, fetus develops brown fat,Used for heat production since baby can’t shiver |