glucose tolerance test: meaning, definition, pronunciation and examples
C1Formal, Medical/Clinical
Quick answer
What does “glucose tolerance test” mean?
A medical procedure to measure how efficiently the body processes sugar, used to diagnose diabetes and pre-diabetes.
Audio
Pronunciation
Definition
Meaning and Definition
A medical procedure to measure how efficiently the body processes sugar, used to diagnose diabetes and pre-diabetes.
A diagnostic test where a patient ingests a glucose solution, and blood samples are taken over time to plot blood sugar levels. The pattern of the body's response to this glucose load indicates how well insulin is working. While primarily a tool for diagnosing diabetes and insulin resistance, it can also be used in research on metabolism.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling of related terms may vary (e.g., 'analyse' vs. 'analyze' in the report). The test protocol (glucose load, timing) is standardised internationally.
Connotations
Purely technical and clinical in both varieties.
Frequency
Equally common in medical contexts in both the UK and US. Very rare in everyday conversation.
Grammar
How to Use “glucose tolerance test” in a Sentence
The patient underwent a glucose tolerance test.The doctor ordered a glucose tolerance test to rule out gestational diabetes.A glucose tolerance test measures insulin response.Vocabulary
Collocations
Examples
Examples of “glucose tolerance test” in a Sentence
verb
British English
- The midwife will schedule her to be glucose tolerance tested next week.
- Patients are routinely glucose-tolerance-tested in the third trimester.
American English
- The doctor wants to glucose-tolerance-test all high-risk patients.
- She was glucose-tolerance-tested to confirm the diagnosis.
adverb
British English
- The sample was taken glucose-tolerance-test-style at intervals.
- This is not performed glucose-tolerance-test-regularly.
American English
- They assessed him glucose-tolerance-test-quickly due to symptoms.
- The lab operates glucose-tolerance-test-efficiently.
adjective
British English
- The glucose-tolerance-test results were concerning.
- We reviewed the glucose-tolerance-test protocol.
American English
- The glucose-tolerance-test criteria have been updated.
- He had a glucose-tolerance-test appointment this morning.
Usage
Meaning in Context
Business
Not used.
Academic
Common in medical, biological, and public health research papers discussing diabetes, insulin resistance, and metabolic syndrome.
Everyday
Rare. Used only when a person is discussing specific medical diagnostics with a healthcare provider.
Technical
The primary register. Standard term in clinical medicine, endocrinology, obstetrics (for gestational diabetes), and laboratory medicine.
Vocabulary
Synonyms of “glucose tolerance test”
Strong
Neutral
Weak
Vocabulary
Antonyms of “glucose tolerance test”
Watch out
Common Mistakes When Using “glucose tolerance test”
- Mispronouncing 'glucose' as /ɡlʌˈkoʊs/ instead of /ˈɡluːkoʊs/.
- Using it as a verb, e.g., 'He was glucosed tolerance tested.' (Incorrect).
- Confusing it with the 'HbA1c test', which measures average blood sugar over months.
FAQ
Frequently Asked Questions
Yes, typically you must fast for 8-12 hours beforehand, consuming only water.
The standard oral test takes about 2 to 3 hours, involving a fasting blood draw, drinking a glucose solution, and subsequent blood draws at regular intervals (e.g., 1 hour, 2 hours).
A 'positive' or abnormal result indicates that your blood sugar levels rose higher than normal and/or remained elevated longer than normal, suggesting insulin resistance, pre-diabetes, or diabetes.
No. The HbA1c test gives an average of your blood sugar levels over the past 2-3 months. The glucose tolerance test is a dynamic test showing your body's real-time response to a sugar challenge.
A medical procedure to measure how efficiently the body processes sugar, used to diagnose diabetes and pre-diabetes.
Glucose tolerance test is usually formal, medical/clinical in register.
Glucose tolerance test: in British English it is pronounced /ˈɡluːkəʊs ˈtɒlərəns ˌtest/, and in American English it is pronounced /ˈɡluːkoʊs ˈtɑːlərəns ˌtest/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None.”
Learning
Memory Aids
Mnemonic
Imagine your body is 'tolerating' a visit from a large amount of glucose. The test is like a stress interview for your insulin system to see how well it handles the guest.
Conceptual Metaphor
BODY AS A PROCESSING SYSTEM / STRESS TEST. The test metaphors the body as a machine or system whose efficiency is measured under a controlled 'load' or 'challenge'.
Practice
Quiz
What is the primary purpose of a glucose tolerance test?