BTEC Assignment Brief
BTEC Level 3 National Diploma in Applied Science
Qualification
BTEC Level 3 National Extended Diploma in Applied Science
Unit number and title Unit 20: Biomedical Science
A: Understand the principles of haematology and its use in medical
Learning aim(s) (For NQF only)
diagnosis
Assignment title Composition of Human Blood
Assessor Yesmina Warren
Issue date 14/02/2025
Hand in deadline 07/03/2025
In order to enhance learning opportunities, BTEC Level 3 Applied
Science students are able to complete work experience placements
within their local hospital. Placements would enable students to
work alongside a qualified Healthcare Scientist observing the
Vocational Scenario or Context
completion of a wide range of laboratory tests that are designed to
aid the diagnosis and treatment of blood-related diseases. On
completion of a placement, you will demonstrate the knowledge
you have gained by producing a report to College peers.
Task 1 · Explain the normal structure and function of each of the
named blood components:
o Erythrocytes
o Leucocytes
o Thrombocytes
o Plasma and serum.
Demonstrate your knowledge of the normal reference ranges of
these components for adults.
· Carry out and document (results, observations and
conclusions) your practical diagnostic investigations on
samples of blood in order to determine the presence or
absence of blood components that could indicate blood
disorders. You must demonstrate the ability to follow
standard operating protocols provided by your tutor to
work methodically and accurately. You must also
demonstrate awareness of good health and safety
practices.
· Provide a detailed explanation of how each of two
diseases might alter the normal structure, number and
function of particular blood components.
· For two chosen diseases, discuss and evaluate the
basis and importance for the selection of specific blood
tests that are likely to be carried out in order to confirm
the preliminary diagnosis. Provide detailed consideration
of the possible implications of misdiagnosis.
, · Demonstrate your knowledge of the reasoning behind the
equipment and techniques that would be used in the
hospital laboratory to carry out each diagnostic test,
making judgements about the appropriate selection,
implementation and interpretation of diagnostic tests by
medical workers.
· With reference to normal ranges in humans, discuss
changes to the composition of blood in the two diseases
you have chosen to study.
Checklist of evidence required A report that includes:
· An evaluation of the use of diagnostic testing of blood in
relation to the detection of diseases
· A discussion relating to the basis of diagnostic tests for
different diseases.
· An explanation of the structure and function of the main
components of blood and how diseases affect the normal
composition of blood.
Evidence to show the results of your practical
investigation into diagnostic blood tests. Further evidence
of completion of the practical investigation should be
provided through observation record completed by your
Assessor.
Criteria covered by this task:
Unit/Criteria reference To achieve the criteria, you must show that you are able to:
Evaluate the use of diagnostic testing of blood in relation to the
A. D1
detection of diseases.
A. M1 Discuss the basis of diagnostic tests for different diseases.
A. P1 Explain the structure and function of the main components of blood.
A. P2 Explain how diseases affect the composition of blood.
A. P3 Correctly carry out diagnostic testing of blood.
Sources of information to support you http://labtestsonline.org.uk/
with this Assignment
http://www.nuffieldfoundation.org/practical-biology/closer-look-
blood
http://www.nuffieldfoundation.org/practical-biology/modelling-
effect-aspirin-blood-clots
http://www.scienceinschool.org/content/investigating-blood-types
http://bitesizebio.com/13687/cell-counting-with-a-hemocytometer-
easy-as-1-2-3/
Examples of practical investigations could include:
· Spectrophotometric estimation of haemoglobin.
· Preparation, staining and microscopic examination of
blood films.
, · Erythrocyte counting using a haemocytometer or
Neubauer counting chamber.
· Haematocrit levels.
Other assessment materials attached to
this Assignment Brief
Notes to Assessor and technician The practical activities suggested for this assignment are required
to be safety checked by the Centre before use. Pearson Education
can take no responsibility for the safety of any practical activities.
The centre must note that all blood must be regarded as infective,
even when the source is known
Before doing any practical activity, you should always carry out
your own risk assessment and refer to the necessary regulations.
In particular, any local rules issued by your employer must be
obeyed, regardless of what is suggested here.
http://science.cleapss.org.uk/Resource/SSS003-Human-body-fluids-
and-tissues.pdf
Unit 20: Biomedical Science, Assignment A:
Introduction:
Biomedical science is a career where biomedical scientists look for
treatments for diseases and illnesses by conducting experiments on the
human cells, fluids, and other substances in the human body. All
experiments are done inside a laboratory. There are different types of
biomedical scientists that specialize in various parts; some specialize in
blood, infections, and even cells and genetics. These scientists work on
diseases and infections to find the cures and treatments to help with the
threatening diseases like Corona that had wiped out millions of people in
the last few years. Hematology is the study of blood. Hematologists are
specialized scientists that work in this area of science; this area includes
bone marrow cells and bone study. They use hematologist tests in order
to be able to diagnose patients who have anemia, hemophilia, and
infections. The types of tests carried out in a laboratory for hematology
are tests for blood proteins, blood-producing organs, and blood. FBC is a
test that evaluates red blood cells, white blood cells, and platelets.
Although there are numerous reasons for testing for a full blood count, the
majority of the time they conduct a FBC to check for anemia, infections,
and a hemo-oncological test.
Structure of the main components of the blood:
Red blood cells (erythrocytes):
BTEC Level 3 National Diploma in Applied Science
Qualification
BTEC Level 3 National Extended Diploma in Applied Science
Unit number and title Unit 20: Biomedical Science
A: Understand the principles of haematology and its use in medical
Learning aim(s) (For NQF only)
diagnosis
Assignment title Composition of Human Blood
Assessor Yesmina Warren
Issue date 14/02/2025
Hand in deadline 07/03/2025
In order to enhance learning opportunities, BTEC Level 3 Applied
Science students are able to complete work experience placements
within their local hospital. Placements would enable students to
work alongside a qualified Healthcare Scientist observing the
Vocational Scenario or Context
completion of a wide range of laboratory tests that are designed to
aid the diagnosis and treatment of blood-related diseases. On
completion of a placement, you will demonstrate the knowledge
you have gained by producing a report to College peers.
Task 1 · Explain the normal structure and function of each of the
named blood components:
o Erythrocytes
o Leucocytes
o Thrombocytes
o Plasma and serum.
Demonstrate your knowledge of the normal reference ranges of
these components for adults.
· Carry out and document (results, observations and
conclusions) your practical diagnostic investigations on
samples of blood in order to determine the presence or
absence of blood components that could indicate blood
disorders. You must demonstrate the ability to follow
standard operating protocols provided by your tutor to
work methodically and accurately. You must also
demonstrate awareness of good health and safety
practices.
· Provide a detailed explanation of how each of two
diseases might alter the normal structure, number and
function of particular blood components.
· For two chosen diseases, discuss and evaluate the
basis and importance for the selection of specific blood
tests that are likely to be carried out in order to confirm
the preliminary diagnosis. Provide detailed consideration
of the possible implications of misdiagnosis.
, · Demonstrate your knowledge of the reasoning behind the
equipment and techniques that would be used in the
hospital laboratory to carry out each diagnostic test,
making judgements about the appropriate selection,
implementation and interpretation of diagnostic tests by
medical workers.
· With reference to normal ranges in humans, discuss
changes to the composition of blood in the two diseases
you have chosen to study.
Checklist of evidence required A report that includes:
· An evaluation of the use of diagnostic testing of blood in
relation to the detection of diseases
· A discussion relating to the basis of diagnostic tests for
different diseases.
· An explanation of the structure and function of the main
components of blood and how diseases affect the normal
composition of blood.
Evidence to show the results of your practical
investigation into diagnostic blood tests. Further evidence
of completion of the practical investigation should be
provided through observation record completed by your
Assessor.
Criteria covered by this task:
Unit/Criteria reference To achieve the criteria, you must show that you are able to:
Evaluate the use of diagnostic testing of blood in relation to the
A. D1
detection of diseases.
A. M1 Discuss the basis of diagnostic tests for different diseases.
A. P1 Explain the structure and function of the main components of blood.
A. P2 Explain how diseases affect the composition of blood.
A. P3 Correctly carry out diagnostic testing of blood.
Sources of information to support you http://labtestsonline.org.uk/
with this Assignment
http://www.nuffieldfoundation.org/practical-biology/closer-look-
blood
http://www.nuffieldfoundation.org/practical-biology/modelling-
effect-aspirin-blood-clots
http://www.scienceinschool.org/content/investigating-blood-types
http://bitesizebio.com/13687/cell-counting-with-a-hemocytometer-
easy-as-1-2-3/
Examples of practical investigations could include:
· Spectrophotometric estimation of haemoglobin.
· Preparation, staining and microscopic examination of
blood films.
, · Erythrocyte counting using a haemocytometer or
Neubauer counting chamber.
· Haematocrit levels.
Other assessment materials attached to
this Assignment Brief
Notes to Assessor and technician The practical activities suggested for this assignment are required
to be safety checked by the Centre before use. Pearson Education
can take no responsibility for the safety of any practical activities.
The centre must note that all blood must be regarded as infective,
even when the source is known
Before doing any practical activity, you should always carry out
your own risk assessment and refer to the necessary regulations.
In particular, any local rules issued by your employer must be
obeyed, regardless of what is suggested here.
http://science.cleapss.org.uk/Resource/SSS003-Human-body-fluids-
and-tissues.pdf
Unit 20: Biomedical Science, Assignment A:
Introduction:
Biomedical science is a career where biomedical scientists look for
treatments for diseases and illnesses by conducting experiments on the
human cells, fluids, and other substances in the human body. All
experiments are done inside a laboratory. There are different types of
biomedical scientists that specialize in various parts; some specialize in
blood, infections, and even cells and genetics. These scientists work on
diseases and infections to find the cures and treatments to help with the
threatening diseases like Corona that had wiped out millions of people in
the last few years. Hematology is the study of blood. Hematologists are
specialized scientists that work in this area of science; this area includes
bone marrow cells and bone study. They use hematologist tests in order
to be able to diagnose patients who have anemia, hemophilia, and
infections. The types of tests carried out in a laboratory for hematology
are tests for blood proteins, blood-producing organs, and blood. FBC is a
test that evaluates red blood cells, white blood cells, and platelets.
Although there are numerous reasons for testing for a full blood count, the
majority of the time they conduct a FBC to check for anemia, infections,
and a hemo-oncological test.
Structure of the main components of the blood:
Red blood cells (erythrocytes):
