Is haemoglobinuria a disease?

No, it is a symptom or sign of an underlying condition, such as haemolytic anaemia or kidney damage.

What is the difference between haemoglobinuria and haematuria?

Haemoglobinuria is haemoglobin protein in urine (from lysed red cells). Haematuria is intact red blood cells in urine.

Can haemoglobinuria be seen with the naked eye?

Yes, in significant amounts it can cause dark red, brown, or cola-coloured urine.

What is the most common cause of haemoglobinuria?

Paroxysmal nocturnal haemoglobinuria (PNH) is a classic cause, but it can also result from infections like malaria, burns, or transfusion reactions.

haemoglobinuria

Very Low

UK/ˌhiːmə(ʊ)ˌɡləʊbɪˈnjʊərɪə/US/ˌhiːməˌɡloʊbɪˈnʊriə/

Technical/Medical

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Definition

Meaning

The presence of haemoglobin in the urine.

A medical condition where haemoglobin, the oxygen-carrying protein in red blood cells, is found in urine, often indicating red blood cell destruction (haemolysis) or kidney damage.

Linguistics

Semantic Notes

Specifically denotes a pathological finding, not a disease itself. It is a sign of an underlying disorder such as paroxysmal nocturnal haemoglobinuria, malaria, or severe burns.

Dialectal Variation

British vs American Usage

Differences

Spelling: 'haemoglobinuria' (UK) vs. 'hemoglobinuria' (US). The pronunciation of the initial 'h' and 'ae'/'e' differs accordingly.

Connotations

Identical medical connotations in both varieties.

Frequency

Equally rare and technical in both dialects, used exclusively in medical contexts.

Vocabulary

Collocations

strong

paroxysmal nocturnal haemoglobinuriaacute haemoglobinuriadiagnose haemoglobinuria

medium

symptoms of haemoglobinuriahaemoglobinuria due topresence of haemoglobinuria

weak

severe haemoglobinuriachronic haemoglobinuriapatient with haemoglobinuria

Grammar

Valency Patterns

Haemoglobinuria is associated with [disease/condition].The patient presented with haemoglobinuria.Tests confirmed the diagnosis of haemoglobinuria.

Vocabulary

Synonyms

Neutral

haemoglobin in urine

Weak

red urine (colloquial, non-specific)

Vocabulary

Antonyms

normal urinalysisabsence of haemoglobin in urine

Usage

Context Usage

Business

Not used.

Academic

Used in medical and biomedical research papers, textbooks, and case studies.

Everyday

Virtually never used in everyday conversation.

Technical

Core term in clinical pathology, haematology, nephrology, and urology.

Examples

By Part of Speech

adjective

British English

The haemoglobinuric episode was documented.
Haemoglobinuric patients require monitoring.

American English

The hemoglobinuric episode was documented.
Hemoglobinuric patients require monitoring.

Examples

By CEFR Level

The doctor found a problem in his urine test.

The lab report indicated haemoglobinuria, suggesting possible red blood cell destruction.

Paroxysmal nocturnal haemoglobinuria, a rare acquired clonal disorder, manifests with haemolytic anaemia, thrombosis, and bone marrow failure.

Learning

Memory Aids

Mnemonic

Think: HAEMO (blood) + GLOBIN (protein) + URIA (in urine) = blood protein in urine.

Conceptual Metaphor

A SIGNAL or ALARM (indicating internal damage or breakdown).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

Do not confuse with 'гемоглобинурия' (direct equivalent) and 'гематурия' (haematuria, which is blood cells in urine).

Common Mistakes

Misspelling as 'hemoglobinurea' or 'haemoglobinurea'.
Confusing it with 'haematuria' (whole blood in urine).
Using it as a verb (e.g., 'The patient haemoglobinurias').

Practice

Quiz

Fill in the gap

A key diagnostic feature of paroxysmal nocturnal is the presence of haemoglobin in the urine upon waking.

Multiple Choice

Haemoglobinuria primarily indicates:

FAQ

Frequently Asked Questions

: No, it is a symptom or sign of an underlying condition, such as haemolytic anaemia or kidney damage.
: Haemoglobinuria is haemoglobin protein in urine (from lysed red cells). Haematuria is intact red blood cells in urine.
: Yes, in significant amounts it can cause dark red, brown, or cola-coloured urine.
: Paroxysmal nocturnal haemoglobinuria (PNH) is a classic cause, but it can also result from infections like malaria, burns, or transfusion reactions.