bolus
noun [ C ] medical specialized uk/ˈbəʊ.ləs/ us/ˈboʊ.ləs/
(MASS)
（尤指咀嚼过的）一团东西
a small round lump of a substance, especially partly digested food
They found a large bolus of clogged material in her stomach. 他们发现她的胃里堵了一大团东西。
- More examples
- The gel may form a bolus.
- After taking a drink the food is brought back up in a bolus.
- Meat bolus was the most common cause of esophageal obstruction.
- An attempt to remove the bolus was unsuccessful as it was tightly impacted in the distal esophagus.
(DRUG)
一片药;一剂药
a single dose (= measured amount) of a drug
Patients were given boluses of 20 or 30 μg of fentanyl. 病人注射了20或30微克芬太尼。
- More examples
- The patient presses a button and receives a preset dose or "bolus" of the drug (e.g. one milligram of morphine).
- Caffeine citrate is commonly administered as a 20 mg/kg bolus (IV or oral).
- Give fluid boluses of 10-20ml/kg and assess clinically.
- It is given as a bolus (1.0-1.5 mg/kg) intravenously.