The Index of Nausea, Vomiting, and Retching: a new format of the lndex of Nausea and Vomiting.
OBJECTIVE
To determine the reliability of the Index of Nausea, Vomiting, and Retching (INVR), a new format of the Rhodes Index of Nausea and Vomiting Form 2 (INV-2).


METHODS
A parallel form study was conducted at a large, Midwestern teaching hospital and a cancer center.


METHODS
Convenience sample of 159 subjects: 40 obstetrical, 60 oncological, 59 medical/surgical.


METHODS
Two instruments, the INVR and the INV-2, were administered approximately 30-60 minutes apart. One-half of the subjects completed the INVR first, and the other half completed the INV-2 first.


METHODS
Equivalency measures of reliability correlation coefficients for both instruments.


RESULTS
A high rate of agreement was found in the responses between the two forms. In cases of clear disagreement, the responses to the INVR were more frequently consistent than the responses to the original form.


CONCLUSIONS
INVR has tested reliability and is more user friendly for the patient and the healthcare provider.


CONCLUSIONS
Nurses have a focal role in managing symptoms. Managing nausea, vomiting, and retching requires excellent assessment skills of the patient's personal symptom experience and knowledge of pharmacology. Efficient, cost-saving assessments require accurate self-report instruments that permit patients to quantify their symptom experiences. The INVR can provide a scientific base from which to prescribe and teach patients and may improve their quality of life. Reliable and valid self-reporting instruments are essential for managing these adverse symptoms.
Rhodes
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VA
Sinclair School of Nursing, University of Missouri, Columbia, USA.
McDaniel
R W
RW
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D006939:Hyperemesis Gravidarum / Q000451:nursing; D008297:Male; D008875:Middle Aged; D009325:Nausea / Q000451:nursing*; D009773:Obstetric Nursing; D009859:Oncology Nursing; D020250:Postoperative Nausea and Vomiting / Q000451:nursing; D011247:Pregnancy; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D014839:Vomiting / Q000451:nursing*