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Can you push the plunger inside a syringe filled with air if the end of the syringe is blocked?
Wiki User
∙ 13y ago
yes you can, because the molecules of the air are loosely packed enough to be compacted or moved.
Wiki User
∙ 13y ago
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When using a tuberculin syringe do you measure using the edge of the plunger where it touches the syringe or the tip of the rounded edge of the plunger?
Measure to the edge of the plunger (or piston) where it touches the inside of the syringe cylinder. http://www.northcumbriahealth.nhs.uk/palliativecare/clinical/syringe/05.php
Why does a syringe plunger go back in if you pull it out?
When the plunger is pulled, the volume inside increases. This reduces the pressure inside, and the air pressure outside forces liquid in, in an effort to make the pressure inside and outside the syringe equal again.
If a capped syringe is heated in which direction will the syringe plunger move?
The fluid or gas inside the syringe will decrease in temperature, therefore it will decrease in volume. This will cause the syringe piston to slide inside the syringe. This is because of the ideal gas law: PV=nRT. If the pressure (P), the number of moles (n), and the ideal gas constant (R) remains constant, than the change in volume must be proportional to the change in temperature.
If a sealed syringe is plunged into cold water in which direction will the syringe piston slide?
Think about what happens to the gas (air) inside the syringe when the temperature decreases. As the gas cools it will occupy a smaller volume and thus the syringe plunger will move DOWN the barrel.
When you place your finger on the plunger of a syringe containing some water it does not depress noticeably?
no it only depresses if you apply pressure. If the finger is just resting on it the liquid inside will remain there.
How do you read the amount of medicine in a syringe in a syringe?
The same way you read ANY syringe. From www.wikipedia.com (http://en.wikipedia.org/wiki/Syringes), if you click on the image of the 10ml syringe, you'll see the markings on the barrel. You measure the units of fluid from the needle side back to the plunger - so as you pull back the plunger you draw in "x" ml's of fluid as marked from the needle back. Standard safety procedures surrounding the use of a syringe should always be followed, and in no way is this short answer a full and complete explanation of how to correctly/safely use a syringe.
When is a syringe preferred over a vacutainer collection?
A Syringe allows more control over the amount of pressure exerted on a tinyand/or fragile vein during a phlebotomya. Syringes do not contain a vacuum but are filled by pulling back onplunger, allowing blood to flow into the barrel of the syringeb. The force exerted on the inside of the blood vessel may beincreased or decreased by pulling plunger faster or slowerc. Therefore, the amount of pressure exerted on the inside of the veinmay be controlled by the phlebotomistd. Phlebotomist may control rate at which blood is withdrawn &thereby prevent a patient's veins from collapsing during bloodspecimen collection
What dose the density of a substance determine?
density is mass divided by volume. It is basically how much material is packed into an amount of space. If you take a syringe full of air and seal it off, then push the plunger down, the material inside compresses, or becomes more dense.
Can you put gel from a fentanyl patch directly on your skin?
Yes. You can take a needle or safety pin and insert it into one of the corners of the fentanyl patch. Then, move the needle or safety pin, left & right, to make a small slit in the patch. Remove the needle and then take a credit card or some other type of hard, firm card and slide the card across the patch, to move the gel inside the patch, towards the slit that you made with the needle. Push the gel out of the slit. Then, take a syringe that is prefilled with water, about 30-40 cc's of water and carefully remove the plunger, after shaking the water down towards the needle. Then, take the gel and carefully apply it onto the opening of the syringe. Then, dip your index finger into water, until the water is on the verge of dripping off of your finger. Put your wet finger over the opening of the syringe and over the gel. (the wet finger will prevent the gel from sticking to your finger and mix with the water in the syringe) Then, shake the syringe upside down until the gel mixes with the water. Then, put the plunger back into the syringe and push the water filled with gel, up towards the needle end, careful not to push too far up, as the water mixed gel, will come out of the needle! Then, there you go!
Why the volume of the air molecules inside of the syringe changes?
This is the effect of the pressure.
What type of mouth does a mosquito have?
A proboscis with a syringe-like part inside of it.
How does a syringe use atmospheric pressure?
The force of the syringe sucking up all the air into the cylinder causes it to displace and fill the space inside the cylinder once all the air has been removed. It needs something to fill the space of where the air was, such as blood, medicine and other liquids. The liquid inside the syringe displaces the air inside the cylinder.
