Bernard Sandler

The postcoital test: what is normal?

field in an ovulatory mucus with a spinnbarkeit of more than 6 cm has been shown to have statistically significant correlation with a median sperm count of over 28 million/ml,3 and thus a positive test is of great value itself. However, lesser degrees of positivity and even negative postcoital tests are of value only when they have been repeatedly shown to be so at the time of presumptive ovulation and steps have been taken to confirm the validity of this timing. Only then are negative postcoital tests indicative of abnormality. Single and isolated tests without ancillary information are thus merely indications for further investigations of the infertile couple into the multifactorial factors which are potentially related to their inability to conceive. MAX ELSTEIN

Radiological Evidence of Age

fluidity prevented any attempt at administration in those cases, but the real danger is in cases where the warming is not sufficient to produce coagulation, but yet great enough to cause haemolysis. The transfusion of such haemolysed blood may have consequences as serious as the transfusion of blood of the wrong group. Probably the only condition in which it is advisable to warm the transfusion fluids is in patients with a high titre of cold agglutinins, but even in these cases it is probably more important to keep the patient warm than to warm the blood. If, however, it is felt advisable to warm the blood and plasma as a routine before administration then the dangers of overheating must be impressed on those responsible for warming the fluids.I am, etc.,