BOXED WARNING Requires a specialized care setting, requires an experienced clinician, respiratory insufficiency. Administration of vecuronium requires an experienced clinician familiar with the actions, characteristics, and hazards of neuromuscular blockade. Neuromuscular blocking agents cause respiratory insufficiency by paralyzing respiratory muscles; administration requires a specialized care setting.
DEFINITION of 'Quarter-Q1, Q2, Q3, Q4'. A three-month period on a financial calendar that acts as a basis for the reporting of earnings and the paying of dividends. A quarter refers to one-fourth of a year and is typically expressed as Q.. The four quarters that make up the year are: January, February and March (Q1); April, May and June (Q2); July, August and September (Q3); and October, November and December (Q4).
Quarters. The calendar year can be divided into four quarters, often abbreviated as Q1, Q2, Q3, and Q4. First quarter, Q1: 1 January â 31 March (90 days or 91 days in leap years) Second quarter, Q2: 1 April â 30 June (91 days) Third quarter, Q3: 1 July â 30 September (92 days) Fourth quarter, Q4: 1 October â 31 December (92 days) When combined with a year, the quarter/year combination may be written, for example, as Q42018 or 4Q2018 or 2018Q4. See also. Academic term; Calendar reform; Common year; Fiscal year; ISO 8601