In text citations are like (1) They happen for every sentence with an information source.(1) They are
References:
(1) the reference used that supports that text.
(2) a different reference that supports that supports that text. A LAB REPORT ON USING BLOOD PRESSURE TO DETERMINE PULSE

INTRODUCTION
A healthy heart should be able to contract and relax its muscles simultaneously for it to supply adequate blood required by the body for its normal functions. The left ventricle contracts and relaxes to produce the systolic and diabolic events. These are two different types of pressure that are used to calculate the pulse rate in one’s body as well as other the mean arterial pressure and the cardiac output which is the measure of the blood flowing in a vessel in a certain duration of time. During a systole, the blood pressure is very low as it flows slowly through the veins and increases its pressure as the blood enters the ventricles due to the contraction. During the diastole, the pressure is increased due to increased metabolic activities within the body thus the need for more oxygen.
Mathematically, the heart beat rate is said to be about 75 seconds thereby making the cycle be about 0.75 seconds which is always covered with trial contractions and relaxations of the muscles.
Blood pressure can be defined as the pressure caused by blood as it is pumped by the heart. For one to qualify to be normal the usual blood pressure should be whereby 120 represents the systolic blood pressure and the diabolic pressure represented by a value below that is 80.
The experiment can have errors due to a usage of a faulty stethoscope or misinterpreting values from the pressure gauge.

OBJECTIVE
The main aim of performing this test was to determine a person’s blood pressure and thus, help determine his pulse rate. This is achieved by measuring his pressure using a stethoscope when his heart contracts to get the systolic pressure and then taking the measurements when the heart relaxes to get the body’s diastolic pressure. This will help determine the state of his blood pressure. This means that I can be able to determine if the pressure is either low or high and normal.

HYPOTHESIS
The blood pressure of the person was a little bit slightly lower than normal showing that fewer activities were undergoing in the body showing that the body was calm until he involved it in exercising.

DISCUSSION
The blood pressure of a human body is measured in units referred to as mm Hg representing millimeters of mercury. The normal blood pressure of a normal human being is usually said to be 120/80 which means that the systolic pressure is 120 and the pressure, when the heart relaxes, is 80 also known as the diastolic pressure. There is another type of pressure called the pulse pressure which is said to be the difference between the pressure when the person is involved in an active action like running or exercising and the pressure which is maintained in the body when the heart relaxes.
My classmate’s pressure was which 140/60 when he was not active which later shifted to 150/70 after doing a couple of exercises. This clearly shows that the pressure rate increases according to the activities the body is subjected to. The pressure (both the systolic and diabolic) happened to rise to 150/70 since the body was demanding for more oxygen that could support the actions.
These pressures increase along with the pulse rate of an individual. However the time period between the values returning to normal after an exercise differs from one individual to another depending on the level of activeness the body is subjected to. For example, a person who is actively involved in exercises like riding bikes, playing soccer or even being an athlete has his pressure taking a relatively shorter time compared to the one person who does not do anything tiresome or anything termed as exercise. A good example can be a person who drives to work, spends the whole day sitting and taking meals and drives back home for more food and sleep waiting for the next day to do the same. The pulse rate is the difference between the systolic pressure and the diabolic pressure.

Using an ordinary stethoscope
Test
Systolic Pressure (mmHg)
Diastolic Pressure (mmHg)
Pulse
Before exercise
140
60
80
After exercise
150
70
80

From our example as seen above the pulse rate is 80.
The mean arterial pressure is a measure of delivering blood to the specific tissues. It can be got by applying the formula

Using our example the MAN before exercise = =86.6667
After vigorous activity MAN ==96.6667

Stroke volume is the blood volume pumped out of the ventricles per beat and can be gotten by deducting the end systolic volume from the end diastolic volume.

MATERIALS USED
Stethoscope
Valve to deflate the air bag
Pressure gauge with an arrow to indicate the values.
A cuff that joins the bulb and the pressure gauge with the human hand.

PROCEDURE APPLIED
1. Make sure the cuff is placed around your clients left arm while the client is in a relaxed position
2. The stethoscope should be located between the ulnar and radial artery while the cuff is put about 5cm from the elbow.
3. The cuff is inflated by squeezing the bulb until the pressure gauge reads about 150mmhg to cause the pressure in the blood vessel stop.
4. Release the air in the bulb slowly by opening the valve.
5. Now, listen carefully through the stethoscope for some slight sounds and record the value indicated by the pressure gauge. This value is said to represent the systolic blood pressure.
6. Pay attention to the sounds as they increase their intensity and record down the value on the pressure gauge when the highest sound is heard from the stethoscope. This value represents the diastolic blood pressure.
7. You can now remove the cuff and wait for your client’s body to resume the normal blood flow. He/she can move the fingers to help resume the blood flow.
8. Repeat the above procedure to get the second test.

Citation
Allen, Connie. Laboratory Manual for Anatomy and Physiology, 3rd Edition. N.p.: John Wiley & Sons, 2008. Print.
Chaffee, Ellen E. Laboratory Manual in Physiology and Anatomy, with Study Guide Questions and Practical Applications. Philadelphia: Lippincott, 1969. Print.