What could be causing my 77-year-old mother-in-law's bottom blood pressure number to drop to 52 at night while her top number stays around 110, given her history of diabetes, recent recovery from COVID-19 and a lung infection, and her daily use of Concor 5 AM, and what should we do?
It is quite common for blood pressure, especially the bottom number, to drop naturally during sleep. In your mother-in-law's case, this nocturnal dip to 52 could be influenced by her morning dose of Concor (bisoprolol), diabetic nerve changes, or temporary physical fatigue from her recent recovery from COVID-19 and a lung infection. Since her top number is stable at 110, this is very reassuring. To help her recover, ensure she stays gently hydrated. Please share these night-time readings with her doctor, who can evaluate if her bisoprolol dose needs a temporary adjustment. If she experiences dizziness, fainting, or confusion, please seek medical attention right away.