# A thin blood film shows red cells with multiple small ring forms and occasional banana-shaped (crescentic) gametocytes. Which organism is most likely?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=482448  
> language: ko  
> subject: Microbiology · 임상미생물학

## 문제

A thin blood film shows red cells with multiple small ring forms and occasional banana-shaped (crescentic) gametocytes. Which organism is most likely?

## 보기

1. Babesia microti
2. Plasmodium vivax
3. Plasmodium falciparum **✔ 정답**
4. Trypanosoma brucei

**정답: 3**

## 해설

Crescent (banana) shaped gametocytes with multiple ring forms and absent peripheral schizonts are characteristic of Plasmodium falciparum. Babesia lacks gametocytes; P. vivax enlarges cells with Schuffner dots.

## 핵심 개념

- **Plasmodium falciparum blood smear gametocyte ring form**

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