Nokea
The uterus displays the following components:
- A. the cervix;
- B. the corpus;
- C. the head;
- D. the mid piece;
Correct Answer: A
Rationale: The correct answer is A: the cervix. The cervix is a component of the uterus that connects the uterus to the vagina. It plays a crucial role in pregnancy, as it dilates during childbirth to allow the baby to pass through. The other choices, B: the corpus, C: the head, and D: the mid piece, are incorrect as they do not refer to components of the uterus. The corpus typically refers to the main body of an organ, while the head and mid piece are terms commonly associated with structures in cells or organisms, not the uterus.
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A 29 year old married computer programmer is c/o 'something strange' going on in his scrotum. Last month he felt a lump in his left testis, and it is still there. He has had some aching in the left testis but denies pain with urination or intercourse. Denies fever, malaise, night sweats. His PMH consisted of groin surgery as a baby and a tonsillectomy as an adolescent. He eats a healthy diet, exercises, denies tobacco or drugs. On exam the penis is circumcised with no lesions. No lymphadenopathy. Palpation of his scrotum is unremarkable on the right but indicates a large mass on the left. Placing a finger through the inguinal ring on the right, you have the patient bear down. Nothing is felt. You attempt to place your finger through the left inguinal ring but cannot get above the mass. On rectal exam, his prostate is unremarkable. What disorder of the tests is most likely the diagnosis?
- A. Hydrocele
- B. Scrotal hernia
- C. Scrotal edema
- D. Varicocele
Correct Answer: B
Rationale: The correct answer is B: Scrotal hernia. The patient's presentation with a lump in the left testis, aching, and a large mass on the left side of the scrotum, along with the inability to pass a finger above the mass through the left inguinal ring, suggests a scrotal hernia. This is further supported by the fact that bearing down does not reveal anything on the right side, ruling out hydrocele and varicocele. Scrotal edema would present with more generalized swelling in the scrotum rather than a localized mass. So, the key findings here point towards a scrotal hernia as the most likely diagnosis.
A client is having a hysterosalpingogram. What action by the nurse is most important?
- A. Assist the client in sitting up after the procedure
- B. Provide the client with a pad to avoid dye stains on the clothes.
- C. Teach her to take all antibiotics prescribed until finished
- D. Inform the client that the procedure may cause shoulder pain.
Correct Answer: A
Rationale: The correct answer is A: Assist the client in sitting up after the procedure. This is important to prevent complications like vasovagal response or fainting due to sudden positional changes. Sitting up slowly helps stabilize blood pressure and prevent dizziness.
B: Providing a pad for dye stains is not the most important action as it is a minor concern compared to client safety post-procedure.
C: Taking antibiotics has no direct relevance to the hysterosalpingogram procedure, so it is not the most important action.
D: Informing the client about potential shoulder pain is helpful, but ensuring immediate safety by assisting the client in sitting up takes precedence.
Which of the following statements relating to lactation is incorrect.
- A. plasma prolactin releasing factor stimulates the release of prolactin from the anterior pituitary.
- B. mechanical stimulation and neural inputs stimulate the anterior pituitary to secrete prolactin releasing factor and oxytocin.
- C. plasma oxytocin stimulates the contraction of breast glands causing milk ejection.
- D. progesterone helps prepare the mammary glands for lactation
Correct Answer: B
Rationale: The correct answer is B because mechanical stimulation and neural inputs do not directly stimulate the anterior pituitary to secrete prolactin releasing factor and oxytocin. The release of prolactin is primarily controlled by the hypothalamus through the release of prolactin inhibitory hormone (dopamine) and prolactin releasing hormone. Oxytocin release is controlled by the hypothalamus in response to suckling. Choices A, C, and D are all correct statements about lactation. Plasma prolactin releasing factor (prolactin releasing hormone) does stimulate the release of prolactin, plasma oxytocin does stimulate milk ejection, and progesterone does prepare the mammary glands for lactation.
Which blood vessel in the fetus has the highest Po2?
- A. Ductus arteriosus
- B. Ductus venosus
- C. Ascending aorta
- D. Left atrium
Correct Answer: B
Rationale: The correct answer is B: Ductus venosus. The ductus venosus carries oxygenated blood from the umbilical vein to the inferior vena cava, bypassing the liver. This blood has the highest Po2 among the choices because it is coming directly from the placenta, where oxygen exchange occurs. The other choices (A, C, D) carry deoxygenated blood or blood with lower oxygen content in the fetal circulation. The ductus arteriosus shunts blood from the pulmonary artery to the aorta, so it carries deoxygenated blood. The ascending aorta and left atrium receive mixed oxygenated and deoxygenated blood, not the highest Po2.
The child's sex is determined by:
- A. the type of the spermatozoon that fecundates the ovule;
- B. the type of the fecundated ovule;
- C. the sex chromosome of the ovule;
- D. the sex chromosome of the spermatozoon
Correct Answer: D
Rationale: The correct answer is D because the sex of the child is determined by the sex chromosome carried by the spermatozoon that fertilizes the ovule. Sperm carries either an X or a Y chromosome, determining if the child will be male (XY) or female (XX). Choices A and B are incorrect because the type of spermatozoon or ovule does not solely determine the child's sex. Choice C is incorrect as well because the sex chromosome of the ovule alone does not determine the child's sex.