行头皮静脉、四肢浅静脉抽血，多发生采血量不足而影响采血成功率；

Scalp vein and extremities superficial vein hanmospasia may unable to draw the adequate blood and then affect the success rate.

youdao

分布性休克： 分布性休克源于因动脉或静脉扩张引起的血管内容量的相对不足，其循环血量正常。

Distributive shock: Distributive shock results from a relative inadequacy of intravascular volume caused by arterial or venous vasodilation;

youdao

急性心力衰竭是指由于急性心脏病变引起心排血量显著、急骤降低导致的组织器官灌注不足和急性淤血综合征。

Acute heart failure (AHF) is defined as a rapid onset or change in the signs and symptoms of HF, resulting in the need for urgent therapy.

youdao