A client presents to the clinic reporting a missed period and a positive home pregnancy test. The nurse explains the mechanism of pregnancy tests detect the presence of _________ in urine or blood.
The Correct Answer is ["Human chorionic gonadotropin (hCG)"]
Pregnancy tests work by detecting the hormone human chorionic gonadotropin (hCG), which is produced by trophoblastic cells of the developing placenta shortly after implantation. hCG maintains the corpus luteum, allowing continued secretion of progesterone to support the early pregnancy. Its levels rise rapidly in the first trimester, making it a reliable indicator of pregnancy in both urine and blood samples.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Eating disorders can cause amenorrhea due to low body fat and hormonal imbalance, but they are less common causes compared to pregnancy. The hypothalamic-pituitary-ovarian axis is suppressed in severe nutritional deficiency.
B. Stress can lead to temporary amenorrhea through hypothalamic suppression and disruption of gonadotropin-releasing hormone, but it is not the most frequent cause in reproductive-age women.
C. Pregnancy is the most common and primary cause of secondary amenorrhea because elevated human chorionic gonadotropin (hCG) levels suppress ovulation and menstruation. A pregnancy test is always the first diagnostic step.
D. Excessive exercise can result in amenorrhea due to decreased energy availability and altered gonadotropin levels, but it accounts for fewer cases compared to pregnancy in the general population.
Correct Answer is B
Explanation
A. Striae gravidarum can appear in the second or third trimester, not exclusively in the third. Their severity is strongly influenced by genetic predisposition, hormonal changes, and the degree of skin stretching rather than fetal growth.
B. Striae gravidarum result from dermal tearing as the skin stretches beyond its elastic capacity. Hormones such as cortisol and estrogen reduce fibroblast activity and collagen strength, predisposing the skin to rupture and forming stretch marks.
C. Striae gravidarum are caused by autoimmune destruction of dermal tissue, commonly seen in There is no autoimmune mechanism involved in the development of striae. They are purely structural and hormonal changes in the skin rather than immune-mediated conditions.
D. Striae actually result from decreased dermal elasticity and collagen integrity. Estrogen and glucocorticoids impair collagen synthesis, leading to thinning and tearing of the dermal layer instead of thickening.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.