Nokea
Which of the following describes oviparity?
- A. Offspring are fully developed at birth.
- B. Young mammals obtain nourishment from mother's placenta
- C. Embryos that continue developing outside their mother's body.
- D. Frogs that hatch from shell-covered fertilized eggs within female's body.
Correct Answer: D
Rationale: Oviparity refers to the reproductive mode where organisms lay eggs that hatch outside the body. Choice D is correct as it describes frogs hatching from shell-covered fertilized eggs within the female's body. This is because frogs lay eggs externally after fertilization, and the eggs hatch into tadpoles outside the female's body. Choices A and B are incorrect as they describe viviparity, where offspring are fully developed at birth and young mammals obtain nourishment from the mother's placenta, respectively. Choice C is incorrect as it describes ovoviviparity, where embryos develop inside eggs within the mother's body but are born live.
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The hormone(s) responsible for hymen. secondary sex characteristics in
- A. The vagina is the female females is/are ________.
- B. estrogens
- C. The innermost lining of the
- D. progesterone
Correct Answer: B
Rationale: The correct answer is B: estrogens. Estrogens are the primary hormones responsible for the development of secondary sex characteristics in females, including the formation of the hymen. Estrogens play a crucial role in regulating menstrual cycles, breast development, and overall reproductive health in females. Progesterone (choice D) is primarily involved in regulating the menstrual cycle and supporting pregnancy but is not directly responsible for hymen development. Choices A and C do not provide accurate or relevant information related to the development of secondary sex characteristics or the hymen.
After a rectal examination of a patient with obstructive jaundice, the nurse expects the stool to be what color?
- A. Tan
- B. Pale yellow
- C. Black
- D. Bright red
Correct Answer: A
Rationale: The correct answer is A: Tan. In obstructive jaundice, there is a blockage in the bile ducts, leading to reduced bile flow into the intestines. As a result, stool color changes to tan or clay-colored due to the absence of bile pigments. Pale yellow is incorrect as it suggests some bile flow. Black stool indicates upper gastrointestinal bleeding. Bright red stool indicates lower gastrointestinal bleeding.
Her Hemovac has drained 60 ml postoperative day 1, 55 ml postoperative day 2, and 40 ml thus far today. She asks you when will the drain be removed. Which would be the most appropriate response?
- A. It will be removed the day you go home.'
- B. Usually the doctor waits until the drainage subsides or stops altogether.'
- C. I'm surprised the doctor didn't take it out by now.'
- D. If you ask your doctor maybe he'll take it out next time he comes in.'
Correct Answer: B
Rationale: The drain is usually removed once the drainage subsides or stops, indicating proper healing.
A nurse is working with a client who has undergone chemotherapy for breast cancer. The client is experiencing body image disturbances. Which of the following symptoms would contribute to this psychosocial issue?
- A. Fatigue
- B. Vomiting
- C. Hair loss
- D. Nausea
Correct Answer: C
Rationale: Hair loss is a visible side effect of chemotherapy that can significantly impact body image.
Which of the following reasons would make a client who was treated successfully for a chlamydia infection at a greater risk for acquiring AIDS?
- A. The tissue irritation may be permanent, despite successful eradication of the bacteria.
- B. The immune system is already compromised.
- C. The bacterium Chlamydia trachomatis causes AIDS.
- D. The bacterium Chlamydia trachomatis continues to live inside the cells it has infected.
Correct Answer: B
Rationale: Having had an STI indicates existing vulnerabilities in the immune system, increasing susceptibility to HIV/AIDS.