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ARTICLES:
William C. Lippert and Eric J. Wall
Optimal Intramuscular Needle-Penetration Depth
Pediatrics 2008; 122: e556-e563 [Abstract] [Full text] [PDF]
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eLetters published:

[Read eLetters] Questioning Weights quoted
fatin S Haider   (1 September 2008)
[Read eLetters] questioning weights
Marie-Pierre Castermans,MD,FAAP   (15 September 2008)

Questioning Weights quoted 1 September 2008
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fatin S Haider,
General Practitioner/Family doctor
NHS,UK

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Re: Questioning Weights quoted

fatin.haider{at}benpct.nhs.uk fatin S Haider

Please clarify the information below which has been extracted from the article which suggests needle sizes which would be approriate. I and my nurse colleagues were rather surprised at the weights quoted in the article see below:

"1/2-inch needle for girls weighing 70 kg or less and boys weighing 75 kg or less; a 5/8-inch needle for girls 70–115 kg and boys 75–140 kg; a 7/8- to 1-inch needle for girls 115 kg or more and boys 140 kg or more".

The figures for weight appear to us very unusual for children in the ages quoted . Is there some explanation for this?

Conflict of Interest:

None declared

questioning weights 15 September 2008
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Marie-Pierre Castermans,MD,FAAP,
pediatrician
NYC Health and Hospital Corp.

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Re: questioning weights

mariepcast{at}aol.com Marie-Pierre Castermans,MD,FAAP

I think that if the weights referred to in the conclusion, regarding the needle lengths, were in LBS instead of KG, it would make much more sense!It would be: 1/2 in for children weighing <70 lbs,5/6 in between 70 and 115 lbs and 7/8to 1 in for girls over 115 lbs and boys over 140 lbs.

Conflict of Interest:

None declared