What infections or other cause, can result in a slightly raised wbc count of 11.23, High abs neu. 8.43 and high abs monocytes of 0.79?

Non-specific. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, bacterial infections are the commonest cause of elevated WBC and neutrophil count. .