BLOOD TESTS
What is the liquid part of blood called?
Plasma
What type of wave does ultrasound use?
Sound
What type of radiation is used in X-rays?
X-rays
What does MRI stand for?
Magnetic Resonance Imaging
What is injected into the patient before a PET scan?
Tracer
Which blood cells carry oxygen?
Red blood cells
Is ultrasound ionising?
No
Which absorbs more X-rays: bone or muscle?
Bone
Does MRI use ionising radiation?
No
What does a PET scan show?
Metabolic activity / Radiation emissions
What is a measurable substance in blood that provides information about health called?
Biomarker
What happens to ultrasound waves when they reach a boundary between tissues?
Reflection
What appears white on a typical X-ray?
Bone
What type of electromagnetic waves are used in MRI?
Radio waves
An example of a tracer used in PET
Organic molecules - sugar, amino acid
FGC
A patient has a very high white blood cell count. What might this suggest?
Infection
Why can't ultrasound travel effectively through air?
Poor Transmission - particles are too spread out to carry wave/sound
Which provides cross-sectional images: X-ray or CT?
CT
MRI is particularly useful for imaging what type of tissue?
Soft Tissue - Tissue with lots of fluids/water
A PET scan shows high glucose uptake in an area of the body. What might this indicate?
Cancer
A patient has high glucose and high HbA1c. What disease is most likely?
Diabetes
Which type of tissue generally produces better ultrasound images: bone or soft tissue?
Soft tissue
Which usually exposes a patient to more radiation: a single X-ray or CT scan?
CT
Why can some metal implants be dangerous during an MRI?
Magnetic interaction
What does PET stand for?
Positron Emission Tomography