an ISR vs a ISR

Both phrases are incorrect. The correct article to use before the word 'ISR' depends on the pronunciation of the acronym. If the acronym is pronounced as individual letters (i.e., 'I-S-R'), then 'an ISR' is correct. If the acronym is pronounced as a word (i.e., 'iss-er'), then 'a ISR' is correct.

Last updated: March 26, 2024 • 844 views

This phrase is incorrect. The article 'an' should be used before acronyms pronounced as individual letters.

"an ISR"

Use 'an ISR' when pronouncing the acronym as individual letters ('I-S-R').

Show examples from the web [+]

At a dose of 100 mg/ day, 71% of patients developed an ISR compared to 28% of the placebo treated patients, which was typically reported within the first 4 weeks of therapy.
The most common and consistently reported treatment-related adverse events associated with Kineret were ISRs.
The majority (95%) of ISRs were reported as mild to moderate.
The development of ISRs in patients who had not previously experienced ISRs was uncommon after the first month of therapy.
In this case here, a new, wearable bio-reactor has been designed - it should be tested clinically later this year at ISR - by Joerg Gerlach in Pittsburgh.
ISR - the rating refers to an entity or issuer of debt
Field 4.005: Image Scanning Resolution (ISR)
the German International Shipping Register (ISR),
Injection site reactions (ISRs) were the most frequently reported adverse reaction and occurred in 98% of the patients (Table 2).
The vast majority of ISRs occurred within the first week of Fuzeon administration and were associated with mild to moderate pain or discomfort at the injection site without limitation of usual activities.
In all placebo-controlled studies, the most frequently reported adverse event with Kineret was injection site reaction (ISRs), which was mild to moderate in the majority of patients.
Acquisition of information acquisition of information (satellite images; theatre-level intelligence, reconnaissance and surveillance (ISR), including Air-to-Ground Surveillance (AGSR); human intelligence).
acquisition of information (satellite images; theatre level intelligence, reconnaissance and surveillance (ISR), including Air-to-Ground Surveillance (AGSR); human intelligence).

This phrase is incorrect. The article 'a' should be used before acronyms pronounced as a word.

"a ISR"

Use 'a ISR' when pronouncing the acronym as a word ('iss-er').

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an ISR vs a ISR

"an ISR"

"a ISR"

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