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WorksheetsNeonatal Anesthesia
Total questions: 10
Worksheet time: 20mins
The most important factor controlling ductal closure in the full-term neonate:
Carbon dioxide
Prostaglandin E2
Nitric oxide
Oxygen
True statement regarding pulmonary physiology in the neonate:
Tidal volume is less versus in an adult on a volume per kilogram body weight measure
Closing volumes are low
Minute ventilation is increased due to the higher oxygen consumption
Lung compliance is relatively high, but chest wall compliance is relatively low
At what age does Glomerular Filtration Rate (GFR) reach adult levels?
6 months old
1 year old
9 months old
2 years old
All of the following are true regarding neonatal airway anatomy, EXCEPT:
In the full-term infant, the glottis is at the level of C3, and in the premature infant, it is at the level of C2
The narrowest aspect of the upper airway is at the cricoid ring
Majority of neonates are preferential nose breathers
The epiglottis is omega-shaped or tubular with a stubby base and thick and bulky aryepiglottic folds, making it difficult to fix with laryngoscope blade
The foramen ovale usually functionally closes at what age?
First hour of life
First 24 hours of life
First month of life
At 6 months
Approximate blood volume of a 3 kg full-term neonate:
300 ml
255 ml
270 ml
245 ml
Hallmarks of fetal circulation, EXCEPT:
Decreased pulmonary vascular resistance
Decreased pulmonary blood flow
Decreased systemic vascular resistance
Foramen ovale
Main shunts present in the fetal circulation, EXCEPT:
Placenta
Foramen ovale
Ductus venosus
Ductus arteriosus
Reasons why the neonatal myocardium is less efficient than that of the adult, EXCEPT:
Cardiac myocytes has less contractile elements
Less mature sarcoplasmic reticulum
Fewer myofibril elements
Myofibirls are organized in parallel
Reasons for low renal blood flow and GFR in neonates, EXCEPT:
High renal vascular resistance
Low permeability of the glomerular capillaries
Small size and number of glomeruli
High systemic arterial pressure
