Podcast
Questions and Answers
What is the primary fluid component of blood that carries the formed elements?
What is the primary fluid component of blood that carries the formed elements?
- Blood plasma (correct)
- Serum
- Interstitial fluid
- Lymph
What is the normal pH range of blood?
What is the normal pH range of blood?
- 7.0 to 7.35
- 7.35 to 7.45 (correct)
- 7.5 to 8.0
- 6.5 to 7.0
Which of the following statements about blood density is true?
Which of the following statements about blood density is true?
- Blood is less dense than water.
- Blood density is equivalent to plasma density.
- Blood is more viscous than water. (correct)
- Blood density varies greatly among individuals.
Which method is specifically used to obtain arterial blood for special tests?
Which method is specifically used to obtain arterial blood for special tests?
What percentage of body weight does an adult's total blood volume represent?
What percentage of body weight does an adult's total blood volume represent?
What happens to blood when it clots?
What happens to blood when it clots?
Which type of blood sample collection method involves inserting a catheter into the heart?
Which type of blood sample collection method involves inserting a catheter into the heart?
What is not a characteristic physical feature of blood?
What is not a characteristic physical feature of blood?
Which of the following is NOT typically a source of blood sample collection?
Which of the following is NOT typically a source of blood sample collection?
Study Notes
Blood: An Overview
- Blood is a fluid connective tissue circulating within the cardiovascular system's blood vessels.
- It comprises formed elements (cells and cell fragments) suspended in blood plasma (extracellular fluid).
Physical Properties and pH
- Blood is denser and more viscous than water, exhibiting stickiness.
- Its pH is slightly alkaline, maintaining a narrow range of 7.35 to 7.45.
- Blood clots upon standing, leaving serum.
- An average adult (70 kg) possesses approximately 5.5 liters of blood, roughly 8% of their body weight (males: 5–6 L; females: 4–5 L).
Blood Sample Sources
- Arterial blood: Obtained via arterial puncture using a syringe and needle, primarily for specialized tests like blood pH analysis; not a routine procedure.
- Cardiac catheterization: Blood samples from heart chambers are collected using a cardiac catheter for specific tests.
Homework Assignment
- Describe the various blood collection tubes and their respective applications.
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Description
This quiz explores the fundamental aspects of blood, including its composition, physical properties, and methods of blood sample collection. You'll gain insights into blood's pH levels, density, and the significance of various blood collection tubes. Assess your knowledge and understanding of this vital fluid in the human body.
