The Kleihauer-Betke test is a cytochemical stain that differentiates between adult haemoglobin (HbA) and fetal haemoglobin (HbF). Fetal red blood cells containing HbF resist acid elution and stain darkly, while adult red cells appear as 'ghost' cells. Its primary clinical use is in obstetrics to detect and quantify fetal-maternal haemorrhage (FMH). This is crucial after events like trauma during pregnancy or delivery to determine if a Rh-negative mother has been exposed to Rh-positive fetal blood, which would require a specific dose of Rh immune globulin (Anti-D) to prevent sensitization.

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Zambia

• ivwananji siwale – 29 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies