Directions for Use

1.     Using aseptic technique, remove the One Stickä Y extension set and Volumeterä from sterile package. Do not contaminate or flush. Air must be in both sides of the Y extension set. Make sure that the clamp is in the open position. To access the needleless valve, swab top of connector with recommended disinfectant in accordance with facility protocol. Attach the Volumeterä to one side of the Y extension set, which will now be identified as Side B. Side A will be the opposite side with a female luer port. Make sure all connections are tight. You may find it helpful to temporarily tape the Volumeterä to the patient with the luer end down. Loosen the protective cap of the Y extension set.

2.     Access vein with IV catheter in usual sterile manner. Attach One Stickä Y extension set and Volumeterä to catheter at hub. For sets with rotating luer locks, ensure the luer connector is fully engaged prior to tightening spin collar. Note that blood moves into the extension tubing and toward Side B and the Volumeterä . (Fig. 1)

3.     Tape catheter and Y extension tubing securely to patient. Hold the Volumeterä so that the distal end cap is higher than Port B and the air space remains in contact with the membrane inside the end cap.

Note: If you inadvertently turn the Volumeterä upside down and blood enters the membrane end cap, return it to the upright position. Attach a syringe to Port A. Tap the Volumeterä gently to cause the blood droplet to fall, then aspirate slightly on the syringe to confirm the occlusion is reversed.

4.     For very small veins (size 24 or 22 catheter), you may attach a syringe (1-5 cc) at Port A. Pulling back slowly on the plunger will cause blood to move out of Side B and toward the syringe. (Fig. 2) Avoid pulling back so quickly that air is pulled into Side A. This process permits collection of blood to be only as fast as the pressure inside the vein allows blood flow. When sufficient blood has been collected, close the clamp. Aspirate any blood remaining in the Volumeterä into the syringe. Disconnect this syringe and transfer blood to a pediatric tube using an approved blood transfer device. Very small veins (size 24 or 22 catheter) may require this to be repeated for each tube to avoid coagulation within the specimen. Remove the Volumeterä and discard. Open the clamp and flush Y tubing on both sides with sterile saline.

5.     For larger veins (size 20 catheter and larger), the Volumeterä may quickly fill completely. (Fig.3)  If so, you may attach a blood tube holder with male luer to Port A to allow partial vacuum tubes to collect the specimen, eliminating the need to transfer from the syringe. (Fig. 3 and Fig. 4) For further blood extraction, remove evacuated tube and allow blood to completely fill the Volumeterä before attaching the additional tube. Repeat as needed.

Note: Use the appropriate size evacuated tube to avoid excessive headspace in your blood tube.

6.     When sufficient blood has been collected, close the clamp. Extract any remaining blood from the Volumeterä . Remove the Volumeterä and blood tube holder and discard. Open the clamp and flush Y tubing on both sides with sterile saline. (Fig. 5) Use as any other extension tubing or saline lock. A new Volumeterä may be attached and the procedure repeated at a later time for additional blood draws as long as the vein is healthy and usable. This device should be changed in accordance with current, recognized guidelines of IV therapy

7.    To obtain an additional blood specimen after the Y tubing has been flushed:

  • Close the clamp. To access needleless connectors, swab top of connector with desired disinfectant in accordance with facility protocol.
  • Attach a new Volumeterä and syringe.
  • Aspirate the saline solution from both sides of the Y extension set into syringe.
  • Open the clamp and allow approximately 1 cc of blood to enter Volumeterä . Close the clamp and discard the Volumeterä .

Note: This Volumeterä will contain blood; therefore, hold the luer end up to avoid spillage. Alternatively, cover the air hole on the membrane end cap with your thumb to minimize blood leakage when removing the Volumeterä .

  • Attach a new Volumeterä and aspirate until both sides are filled with air. Discard the syringe. Open the clamp and proceed to collect specimen as previously described.
Cautions:
Do not use needles to access needleless valves.
Federal (USA) law restricts this device to sale by or on the order of a physician.
This device should be changed in accordance with current, recognized guidelines of IV therapy. Properly dispose of when procedure is completed.
Single Use Only -- Do Not Resterilize
Latex Free
U.S. and Foreign Patents Pending

 

Volumeter is a trademark of One Stick, LLC
One Stick is a trademark of One Stick, LLC