Nokea
Male sex chromosomes are represented as ________.
- A. XX
- B. XO
- C. XY
- D. XZ
Correct Answer: B
Rationale: The correct answer is C: XY. In humans, males have one X and one Y chromosome, while females have two X chromosomes. This combination determines an individual's sex. Choice A (XX) is incorrect because it represents the genotype for females. Choice B (XO) is incorrect as it denotes Turner syndrome in females with only one X chromosome. Choice D (XZ) is not a valid representation of male sex chromosomes in humans.
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When developing the plan of care for a home health client who has been discharged after a radical prostatectomy, which activities will you delegate to the home health aide?
- A. Monitor the client for symptoms of urinary tract infection.
- B. Help the client to connect the catheter to the leg bag.
- C. Assess the client's incision for appropriate wound healing.
- D. Assist the client to ambulate for increasing distances.
Correct Answer: D
Rationale: Assisting with mobility is within the scope of practice for a home health aide.
This is an inflammation of the fallopian tubes and the pelvic organs secondary to infections with gonococcus or chlamydia
- A. Ovarian cyst
- B. Endometriosi
- C. PID
- D. Cervicitis
Correct Answer: C
Rationale: Step 1: Pelvic inflammatory disease (PID) is an infection of the fallopian tubes and pelvic organs.
Step 2: PID is commonly caused by gonococcus or chlamydia infections.
Step 3: Ovarian cyst (A) is a fluid-filled sac on the ovary, not related to infections.
Step 4: Endometriosis (B) is the growth of endometrial tissue outside the uterus, not typically associated with infections.
Step 5: Cervicitis (D) is an inflammation of the cervix, not involving the fallopian tubes and pelvic organs.
The nurse documents which finding as expected on inspection of the anus?
- A. Skin tone darker and coarser than that of the surrounding skin
- B. Sphincter lightly closed when the patient is relaxed
- C. Large amount of stiff, curling hair surrounding the anus
- D. Slight protrusion under the skin when the patient strains or bears down
Correct Answer: A
Rationale: The correct answer is A because the normal skin tone of the anus is typically slightly darker and coarser than the surrounding skin due to increased melanin concentration. This is a result of the natural pigmentation of the area.
Choice B is incorrect because the sphincter should be relaxed during inspection, not lightly closed. Choice C is incorrect as a large amount of stiff, curling hair surrounding the anus is not an expected finding. Choice D is incorrect as a slight protrusion under the skin when the patient strains or bears down could indicate hemorrhoids, which are not considered normal.
Which diagnostic study is recommended for high-risk clients in addition to mammography?
- A. Breast biopsy
- B. MRI
- C. Ultrasound
- D. CT scan
Correct Answer: B
Rationale: MRI is often recommended for high-risk clients as an additional diagnostic tool.
Why is milk produced only after delivery, not before?
- A. Levels of luteinizing hormone and follicle-stimulating hormone are too low during pregnancy to support milk production
- B. High levels of progesterone and estrogen during pregnancy suppress milk production
- C. The alveolar cells of the breast do not reach maturity until after delivery
- D. High levels of oxytocin are required for milk production to begin, and oxytocin is not secreted until the baby stimulates the nipple
Correct Answer: B
Rationale: Correct Answer: B - High levels of progesterone and estrogen during pregnancy suppress milk production.
Rationale:
1. Progesterone and estrogen levels are high during pregnancy to maintain the uterine lining and support fetal development.
2. These hormones inhibit the action of prolactin, the hormone responsible for milk production.
3. As a result, the mammary glands are prevented from producing milk until after delivery when progesterone and estrogen levels drop.
4. Once these hormone levels decrease, prolactin can initiate milk production in response to the baby's demand for feeding.
Summary of other choices:
A: Levels of luteinizing hormone and follicle-stimulating hormone do not directly impact milk production during pregnancy.
C: Alveolar cells of the breast may have some developmental changes during pregnancy, but it is not the primary reason for milk production post-delivery.
D: Oxytocin is involved in milk ejection, not milk production, and its release is