Prep Flashcards
Who does amniocentesis?
perinatologist (specially trained obstetrician)
Who repairs 2nd degree tears?
Midwife
Who does 6 week post natal baby check?
GP
Mechanism of action of cyclizine?
piperazine derivative with H1 antagonist (antihistamine) properties
Mechanism of action of ondansetron?
5 HT antagonist
prevents N&V post-chemo
Mechanism of domperidone/prochloperazine?
D2 receptor antagonist
(N&V, increase GI peristalsis, promote PRL release)
(prevents N&V post chemo, typical antipsychotic)
Content of saline?
Na 154
Cl 154
K 0
(% of NaCl in solution is similar to NaCl in intravascular space)
Content of glucose and water infusion?
Na 0
Cl 0
K 0
(dextrose is metabolised solution becomes hypotonic causing fluid to shift into cells)
Content of hartmanns?
Na 131
Ca 2
K 5
Cl 111
Lactate 29 (metabolised in the liver and converted to bicarbonate)
(NaCl, NaLactate, KCl, CaCl)
(most closely related to composition of body serum)
What are the 3 main types of fluids?
colloids (contain large molecules that cant pass cell membrane, remain in intravascular compartment and expand intravascular volume - draw fluid from extravascular spaces due to increased oncotic pressure)
crystalloids (contain small molecules that flow easily across cell membranes, transfer from blood into cells and body tissues. Increase in interstitial and intravascular. Isotonic, hypotonic, hypertonic)
blood products
Ratio of intracellular fluid to extracellular?
intracellular 2/3rds
extracellular 1/3rd (interstitial fluid, intravascular, 3rd space)
Examples of isotonic crystalloid solutions?
0.9% NaCl
Hartmann’s
5% dextrose in water
(concentration of solutes similar to plasma, doesnt move into cells remaining in extracellular compartment)
Sore throat and pustules on hand?
Hand foot and mouth disease
coxsackie
What vaccine is given before and after 1 year?
DTaP/IPV
What does the umbilical vein carry?
oxygenated blood from placenta to liver where it becomes ductus venosus
