A drug that prevents or stops vomiting.

A drug that prevents or stops vomiting.

• A. Antiemetic
• B. Electrolyte
• C. Phlebitis
• D. Raynaud's disease

Answer: (A)

An antiemetic is a drug that prevents or stops vomiting. Vomiting is a reflex guided by signals in the brain and gut, so antiemetics work by blocking or modulating those signals to prevent the urge to vomit, or to reduce nausea. This class includes medicines that act on different receptors, such as serotonin or dopamine receptors, to curb the vomiting reflex. They’re commonly used after surgery or during chemotherapy, or with gastroenteritis, to keep someone from expelling their stomach contents. The other terms don’t fit this purpose: an electrolyte is a mineral essential for fluid balance and nerve function; phlebitis is inflammation of a vein, often related to IVs; Raynaud’s disease is a circulatory condition that affects blood flow to the fingers and toes. None of these describe a drug intended to prevent vomiting, so the correct fit for a vomiting-preventing medication is antiemetic.

An antiemetic is a drug that prevents or stops vomiting. Vomiting is a reflex guided by signals in the brain and gut, so antiemetics work by blocking or modulating those signals to prevent the urge to vomit, or to reduce nausea. This class includes medicines that act on different receptors, such as serotonin or dopamine receptors, to curb the vomiting reflex. They’re commonly used after surgery or during chemotherapy, or with gastroenteritis, to keep someone from expelling their stomach contents.

The other terms don’t fit this purpose: an electrolyte is a mineral essential for fluid balance and nerve function; phlebitis is inflammation of a vein, often related to IVs; Raynaud’s disease is a circulatory condition that affects blood flow to the fingers and toes. None of these describe a drug intended to prevent vomiting, so the correct fit for a vomiting-preventing medication is antiemetic.