The most common site for an ectopic pregnancy is

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2022

Explanation

The fallopian tube is the anatomical location for over 95% of all ectopic pregnancies, making it the most common site.
This high frequency is often due to conditions that delay or obstruct the passage of the fertilized ovum to the uterus, such as damage to the tube from pelvic inflammatory disease (PID), previous tubal surgery, or endometriosis.
Within the fallopian tube, the ampulla is the most frequent site of implantation, followed by the isthmus.
Because the fallopian tube is narrow and cannot stretch like the uterus, a growing pregnancy will eventually rupture the tube, causing a life-threatening internal hemorrhage.

Option A: An ovarian pregnancy is a rare form of ectopic pregnancy, accounting for only about 3% of cases.
Option B: An abdominal pregnancy is extremely rare, occurring in about 1% of ectopic cases. It involves implantation in the peritoneal cavity.
Option D: A cervical pregnancy is also a very rare site, accounting for less than 1% of all ectopic pregnancies. It involves implantation in the fibrous wall of the cervix.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomical locations of ectopic pregnancy as background academic context rather than a clinical decision trigger.
A ruptured ectopic pregnancy is a life-threatening medical emergency due to the risk of massive internal bleeding (hemorrhage) and hypovolemic shock.
Nurses must be vigilant in assessing any woman of childbearing age presenting with abdominal pain and/or vaginal bleeding for the possibility of an ectopic pregnancy.
Key signs of rupture include sudden, sharp, severe, unilateral lower abdominal pain, dizziness, fainting, and referred shoulder tip pain (Kehr's sign), which indicates diaphragmatic irritation from blood in the abdomen.

How to Approach the Question

This is a factual recall question that tests your knowledge of reproductive health.
First, identify the key terms in the question: 'ectopic pregnancy' and 'most common site'.
Recall the definition of an ectopic pregnancy: implantation of a fertilized ovum outside the uterine cavity.
Mentally review the anatomy of the female reproductive system, including the uterus, fallopian tubes, ovaries, and cervix.
Consider the typical journey of a fertilized egg from the ovary, through the fallopian tube, to the uterus.
Compare the statistical frequency of ectopic implantation in the different possible locations (fallopian tube, ovary, abdomen, cervix).

Concept Tested & Keywords

Q7MCLMP_mEmtb7tICf_mN3

E6 Medicine Harrison 22e Part 2 p. 1040-1042

E6 Gynecology Williams p. 181-218

E6 Obstetrics Williams p. 28-46

Practise the full RUHS, Jaipur, M.Sc Nursing Entrance Exam-2022

Attempt every question from this paper in a timed mock, then review the full solution for each one.