Select the correct answer.

lena has been experiencing unusual menstruation. her doctor confirms that a hormonal imbalance is not the cause of her problem. what procedure would lena's doctor use to examine her uterus?
a pap smear
b. aminocentesis
c. colposcopy
d. hysteroscopy

A. Pap smear

Explanation:

  Pap smear is a simple and quick exam that collects cervical cells for laboratory analysis - its main goal is to prevent against cervical cancer. It is used to detect premalignant cervical infections and lesions of uterus (this type of cancer is associated with HPV infection). Other risk factors are smoking, low vitamin intake, multiple sexual partners, early sexual initiation and the use of oral contraceptives.

   The colposcopy is used to detect lesions in the cervix, vagina and vulva. When to be strictly done, it should be indicated only in cases of altered Pap smears, but as the accuracy of this examination is often poor, it is routinely complemented by colposcopy to improve its performance.