22.  A nurse comes out of a patient’s room and is upset because an accidental needle stick just occurred.  Which of the following should the nurse do first?

The _____ wave on an electrocardiogram (EKG) represents ventricular repolarization.

___________________ is the narrowing of the blood vessel due to contraction of the smooth muscle in the blood vessel walls.

The question below is an extra credit question worth 2pts. If you get it correct, I will have to manually add the points after the exam is taken.   Which of the below reduces heart rate?

This protein in red blood cells allows them to carry oxygen: __________________. 

A cylinder is filled with 10.0L of gas and a piston is put on the cylinder.  The initial pressure of the gas is measured to be 1.85 atm. The piston is now pushed down, compressing the gas, until the gas has a final volume of 2.00L.  Calculate the final pressure of the gas.  Be sure your answer has the correct number of significant figures.

An arctic weather balloon  is filled with `vol` L of helium gas inside a prep shed. The temperature inside the shed is 11.°C. The balloon is then taken outside, where the temperature is −12.°C. Calculate the new volume of the balloon.  You may assume the pressure on the balloon stays constant at exactly 1atm. Be sure your answer has the correct number of significant digits.

(I5ErmjA5) In academic writing, _____ need to be accompanied by citations.

(sBxlxAA5) Copying and pasting from the internet can be done without citing the source because everything on the internet is common knowledge and can be used without citation.

(e0FRyRA5) When copying a single sentence you do not need to use quotation marks (“ “).