... priceHigh qualityOriginal JapanUsage Instructions: 1. Lock Multi-sample needle short end with latex cover directly into holder.2. String tourniquet, disinfect ... middle finger lock holder flange, thumb push tube bottom, pierce short end through tube robber cap, observe blood reflux. If ... -8 times after collection, mixing up additives in tube with blood, no acute shaking to avoid specimen hemolysis Low ...