Optimal Intramuscular Needle-Penetration Depth

William C. Lippert; Eric J. Wall

doi:10.1542/peds.2008-0374

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questioning weights
Marie-Pierre Castermans,MD,FAAP

Published on: 15 September 2008
Questioning Weights quoted
fatin S Haider

Published on: 02 September 2008

Published on: (15 September 2008)

questioning weights
Marie-Pierre Castermans,MD,FAAP, pediatrician
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

Competing Interests: None declared.
Published on: (2 September 2008)

Questioning Weights quoted
fatin S Haider, General Practitioner/Family doctor
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...
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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
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Competing Interests: None declared.