Determination of deltoid fat pad thickness: Implications for needle length in adult immunization

Gregory A. Poland, Aleta Borrud, Robert M. Jacobson, Kristina McDermott, Peter C. Wollan, Duane Brakke, J. William Charboneau

Research output: Contribution to journalArticle

114 Citations (Scopus)

Abstract

Objective. - To measure deltoid fat pad thickness and determine the optimal needle length for deltoid intramuscular immunization in healthy adults. Design, Setting, and Participants. - Prospective study of 220 healthy health care workers (126 women, 94 men) at the Mayo Medical Center, Rochester, Minn. Main Outcome Measures. - Deltoid fat pad thickness determined by high-resolution ultrasound scanning, weight, height, and mid- deltoid arm circumference. Results. - We found a highly significant difference between women and men in deltoid fat pad thickness, with women having a thicker deltoid fat pad (11.7 vs 8.3 mm; P<.001). Women had a greater deltoid skin-fold thickness than men (34.7 vs 17.2 mm, P<.001) and an equal body mass index. According to the ultrasound findings, a standard 16- mm (5/8-in) needle would not have reached 5 mm into muscle in 17% (16/94) of men and 48.4% (61/126) of women in this study. Conclusions. - Among healthy adults of the age range we studied, the following needle lengths appear to be appropriate for true deltoid intramuscular immunization: For men across the weight ranges we studied (59-118 kg), use of a 25-mm (1-in) needle would result in at least 5 mm of muscle penetration in all subjects. For women who weighed less than 60 kg, a 16-mm (5/8-in) needle would be sufficient to achieve muscle penetration of 5 mm. For women between 60 and 90 kg, a 25-mm (1-in) needle would be sufficient, and women greater than 90 kg would require a 38-mm (1.5-in) needle to ensure intramuscular administration.

Original languageEnglish (US)
Pages (from-to)1709-1711
Number of pages3
JournalJournal of the American Medical Association
Volume277
Issue number21
StatePublished - Jun 4 1997

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Needles
Adipose Tissue
Immunization
Muscles
Weights and Measures
Body Mass Index
Outcome Assessment (Health Care)
Prospective Studies
Delivery of Health Care
Skin

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Poland, G. A., Borrud, A., Jacobson, R. M., McDermott, K., Wollan, P. C., Brakke, D., & Charboneau, J. W. (1997). Determination of deltoid fat pad thickness: Implications for needle length in adult immunization. Journal of the American Medical Association, 277(21), 1709-1711.

Determination of deltoid fat pad thickness : Implications for needle length in adult immunization. / Poland, Gregory A.; Borrud, Aleta; Jacobson, Robert M.; McDermott, Kristina; Wollan, Peter C.; Brakke, Duane; Charboneau, J. William.

In: Journal of the American Medical Association, Vol. 277, No. 21, 04.06.1997, p. 1709-1711.

Research output: Contribution to journalArticle

Poland, GA, Borrud, A, Jacobson, RM, McDermott, K, Wollan, PC, Brakke, D & Charboneau, JW 1997, 'Determination of deltoid fat pad thickness: Implications for needle length in adult immunization', Journal of the American Medical Association, vol. 277, no. 21, pp. 1709-1711.
Poland GA, Borrud A, Jacobson RM, McDermott K, Wollan PC, Brakke D et al. Determination of deltoid fat pad thickness: Implications for needle length in adult immunization. Journal of the American Medical Association. 1997 Jun 4;277(21):1709-1711.
Poland, Gregory A. ; Borrud, Aleta ; Jacobson, Robert M. ; McDermott, Kristina ; Wollan, Peter C. ; Brakke, Duane ; Charboneau, J. William. / Determination of deltoid fat pad thickness : Implications for needle length in adult immunization. In: Journal of the American Medical Association. 1997 ; Vol. 277, No. 21. pp. 1709-1711.
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