Suositukset aineiden annosteluun ja verinäytteiden ottoon

 

 Neulan koko ja injektiovolyymit   

       sc - nahan alle
       im - lihakseen
       iv - suonensisäisesti
       ip - vatsaonteloon

 

Hiiri
   sc 25 G     0,5 ml
   im 27 G     0,05 ml
   iv 26-28 G 0,3 ml
   ip 25-27 G 2-3 ml
   po               0,5 ml

Rotta
   sc 25 G     2 ml
   im 25 G     0,1 ml
   iv 25-27 G 0,5-1 ml
   ip 23-25 G 4-10 ml
   po                2 ml

Kani
   sc 21-25 G        1-5 ml/kohta, yht. 20-30 ml
   im 25 G              0,5 ml
   iv 23-25 G          10 ml
   ip 21-23 G          50 ml

Diehl et al: A GOOD PRACTICE GUIDE TO THE ADMINISTRATION OF SUBSTANCES AND REMOVAL OF BLOOD, INCLUDING ROUTES AND VOLUMES – Journal of Applied Toxicology 21, 15 - 23, 2001

Table 1. Administration volumes considered good practice (and possible maximal dose volumes) a.)

SpeciesRoute and volumes (ml/kg)
 Oral
 
s.c.
 
i.p.
 
i.m.
 
i.v.
(bolus)

i.v.
(slow inj.)

Mouse10 (50)10 (40)20 (80)0.05(0.1)b)5(25)
Rat10 (40)5 (10)10 (20)0.1 (0.2) b)5(20)
Rabbit10 (15)1 (2) 5 (20) 0.25 (0.5)2 (10)
 Dog 5 (15)1 (2) 1 (20) 0.25 (0.5) 2.5 (5)
 Macaque 5 (15) 2 (5) c)(10) 0.25 (0.5) 2 c)
 Marmoset10 (15)  2 (5) c)(10) 0.25 (0.5) 2.5 (10)
 Minipig 10 (15) 1 (2) 1 (20) 0.25 (0.5) 2.5 (5)

 a.) For non-aqueous injectates, consideration must be given to time of absorption before redosing. No more than two intramuscular sites should be used per day. Subcutaneous sites should be limited to two or three sites per day. The subcutaneous site does not include Freund's adjuvant administration.
b.) Values in millilitres per site.
c.) Data not available.

Table 2. Repeated intravenous infusion: dose volumes/rates (and possible maximal volumes/rates) a.) 

Daily infucion period Mouse Rat      Rabbitb) Dog Macaque Minipig
Total daily volume (ml/kg)       
 4 hL c)  L c) 20  L c)

20

  L c)   L c)
 24 h 96(192) 60(96) 24
(72)
 24(96) 60 24
Rate (ml kg-1 h-1)            
 4 h L c) 5 L c) 5c) L c)
 24 h 4 (8) 2.5(4) 1 (3) 1 (4) 2.5 1

a.) For non-aqueous injectates, see text. In some cases two sets of values are shown. Those in parentheses are the possible maximal values.
b.) Based on teratology studies.
c.) Data not available.

Table 3. Circulating blood volume in laboratory animals     

SpeciesBlood volume (ml/kg)
 Recommended mean a)Range of means
Mouse7263-80
Rat6458-70
Rabbit5644-70
Dog (Beagle)8579-90
Macaque (Rhesus)5644-67
Macaque (Cynomolgus)6555-75
Marmoset7058-82
Minipig6561-68

 a.) The recommended mean corresponds to the mid-point of the range of means.

Table 4. Limit volumes and recovery periods  

Single sampling
(e.g. toxicity study)

Multiple sampling
(e.g. toxicokinetic study)

% Circulatory blood volume removed Approximate recovery
 period
 % Circulatory blood volume removed in 24 hApproximate recovery period
7.5 %1 week7.5 %1 week
10 %2 weeks10-15 %2 weeks
15 %4 weeks20 %3 weeks

    
Table 5. Total blood volumes and recommended maximum blood sample volumes for   species of given body weights  

Species
(weight)
Blood volume
(ml)
7.5%
(ml)
10%
(ml)
15%
(ml)
20%
(ml)
Mouse
(25 g)
1.80.10.20.30.4
Rat
(250 g)
161.21.62.43.2
Rabbit
(4 kg)
22417223445
Dog
(10 kg)
8506485127170

Macaque (15 kg)
(Rhesus)

 280 21 28 42 56
Macaque (5 kg)
(Cynomolgus)
 325 24 32 49 65
Marmoset
(350 g)
 25 2.0 2.5 3.5 5
Minipig
(15 kg)
 975 73 98146 195 

   

Table 6. Summary of the advantages and disadvantages of the various methods of blood sampling  

Route/veinGeneral anaesth.Tissue damage aRepeated bleedsVolumeSpecies
JugularNoLowYes+++Rat, dog, rabbit
CephalicNoLowYes+++Macaque, dog
Saphenous/lateral tarsalNoLowYes++(+)Mouse/rat, mamoset/macaque, dog
Marginal ear No (local) LowYes  +++Rabbit, minipig
Femoral No LowYes +++ Marmoset/macaque 
Sublingual Yes LowYes +++ Rat 
Lateral tail No LowYes ++(+) Rat, mouse, marmoset
Central ear artery No (local) LowYes +++ Rabbit 
Cranial vena cava No LowYes +++ Minipig 
Tail tip amputation
(<1-3mm)
 Yes ModLimited Mouse/rat 
Retrobulbar plexus Yes Mod/highYes +++ Mouse/rat 
Cardiac b Yes ModNo +++ Mouse/rat/rabbit 

a.) The potential for tissue damage is based on the likely incidence occurring and the severity of any sequelae, e.g. inflammatory reaction or histological damage.
b.) Only carried out as a terminal procedure under general anaesthesia.

Table 7. Recommended sites for repeated blood sampling  

SpeciesRecommeded site
MouseSaphenous, lateral tail
RatSaphenous, lateral tail, sublingual
RabbitMarginal ear, central ear artery, jugular
DogCephalic, jugular, saphenous
MacaqueCephalic, saphenous, femoral
MarmosetFemoral, saphenous
MinipigCranial vena cava

   2.6.2010sm