While in the antecubital fossa
of the arm, correct vein selection is also a consideration for proper blood draw technique affording an optimal result.
In addition, the upper extremity may be tightly pinned between fetal trunk and maternal tissues, making it impossible to flex the forearm by gentle pressure on the antecubital fossa
The median nerve runs vertically through the antecubital fossa
, so by palpating before withdrawing blood, to ensure a vein is used rather than an artery, it should be possible to avoid injury to the median nerve.
For forearm BPs, the cuff is positioned midway between the wrist and the antecubital fossa
. If auscultation is used, the stethoscope is placed over the radial artery.
Palpate one inch below the antecubital fossa
(crease in elbow) to locate the brachial artery pulse found on the inside of the forearm.
However, she has her patients patch test the antecubital fossa
for 2-3 days before purchasing the product.
Motor and Sensory Evaluation Motor Evaluation C1-C4 Diaphragm C5 Biceps C6 Wrist extensors C7 Triceps C8 Finger extensors T2-L1 Use sensory level L2 Hip flexors L3 Quadriceps L4 Tibialis anterior S1 Gastrocnemius S2-S5 Use sensory level and rectal tone Sensory Evaluation C4 Top of acromioclavicular joint C5 Lateral side of antecubital fossa
C6 Thumb C7 Third finger C8 Fifth finger T1 Medial side of antecubital fossa
T4 Nipple line T5-T9 Corresponding intercostals space T10 Umbilicus L1 Inguinal ligament L2 Middle of anterior thigh L4 Medial calf L5 Lateral calf S2 Posterior thigh S4, S5 Perineum
Friedman, citing a 2012 study showing that in four healthy volunteers, the microbiota from swabs at four sites (antecubital fossa
, back, nare, and plantar heel) varied widely both in diversity and composition (Genome Res.
It courses down the arm adjacent to the brachialis muscle, crosses the antecubital fossa
under the lacertus fibrosus, and then travels between the superficial and deep heads of the pronator teres muscle.
Patient had a remarkable sparing of skin creases at various sites including trunk, antecubital fossa
and axillary flexures suggestive of a positive "Deck Chair Sign".
They looked at samples from 10 sites on each subject: the external auditory canal, forehead, occiput, retroauricular crease, back, manubrium, antecubital fossa
, inguinal crease, volar forearm, and nares.
Non-radiology staff are generally dealing with inpatients who may be sicker, the cannula may have been in place for more than 24 hours and positioned for patient comfort such as in the dorsum of the hand, rather than the preferred site for radiology staff in the antecubital fossa
region of the upper forearm.