which technique is used to detect aids

HESI RN

Reproductive Health Exam

1. Which technique is used to detect HIV/AIDS?

A. Northern blot and ELISA
B. Immunoblot and ELISA
C. Western blot and ELISA
D. Southern blot and ELISA

Correct answer: C

Rationale: The correct answer is C: Western blot and ELISA. Western blot and ELISA are commonly used techniques in the detection of HIV/AIDS. Western blot is used to confirm the presence of HIV antibodies in a patient's blood after an initial positive ELISA test. Northern blotting is a technique used for RNA analysis, not for detecting HIV/AIDS (Choice A). Immunoblotting is another term for Western blotting, so Choice B is incorrect. Southern blotting is used for DNA analysis, not for detecting HIV/AIDS (Choice D).

2. When does threatened abortion occur?

A. The patient experiences slight vaginal bleeding through an undilated cervix.
B. The patient experiences heavy bleeding and cervical dilation.
C. The patient experiences severe cramping and heavy bleeding.
D. The patient experiences painless bleeding and an open cervix.

Correct answer: A

Rationale: Threatened abortion occurs when the patient experiences slight vaginal bleeding through an undilated cervix. This is characterized by bleeding without cervical dilation, distinguishing it from inevitable abortion (heavy bleeding and cervical dilation), incomplete abortion (severe cramping and heavy bleeding), and missed abortion (painless bleeding and an open cervix).

3. How does human sperm move?

A. Flagella
B. Cilia
C. Neutrophils
D. None of the above

Correct answer: A

Rationale: Human sperm moves using flagella, which are whip-like structures that aid in propulsion. Flagella are tail-like structures found in sperm cells and help them swim towards the egg for fertilization. Cilia are shorter, hair-like structures that are not involved in the movement of sperm. Neutrophils are a type of white blood cell involved in the immune response and are not related to sperm locomotion.

4. Inevitable abortion occurs when:

A. The ovum dies in utero and the decidua capsularis remains intact.
B. The cervix is open, and the products of conception are about to be expelled.
C. The products of conception are expelled before the 20th week of gestation.
D. The fetus dies and is expelled in the first trimester.

Correct answer: B

Rationale: Inevitable abortion occurs when the cervix is open, and the products of conception are about to be expelled. This is a critical point in the process of spontaneous abortion, indicating that expulsion of the products of conception is imminent. Choice A is incorrect as it describes a missed abortion where the ovum dies but the decidua capsularis remains intact. Choice C is incorrect as it describes an incomplete abortion where the products of conception are expelled before the completion of 20 weeks of gestation. Choice D is incorrect as it describes a missed abortion where the fetus dies and is expelled in the first trimester.

5. The GIFT technique is recommended for which of the following females?

A. Females who cannot produce an ovum
B. Females who cannot provide a suitable environment for fertilization
C. Females who cannot retain the embryo inside the uterus
D. All of the above

Correct answer: D

Rationale: The correct answer is D, 'All of the above.' The GIFT technique is recommended for females who cannot produce an ovum, provide a suitable environment for fertilization, or retain the embryo inside the uterus. This technique involves transferring the unfertilized eggs and sperm directly into the fallopian tube, bypassing the need for the ovum to travel through the fallopian tube. Choices A, B, and C all represent different scenarios where the GIFT technique would be a suitable option, making option D the correct choice.