Nokea
You have obtained these data about a 68-year-old client who is ready for discharge from the ED and has a new prescription for nitroglycerin (Nitro-Stat) 0.4 mg sublingual. Which information about the client has the most immediate implications for client teaching?
- A. The client has benign prostatic hypertrophy and some urinary hesitancy.
- B. The client's father and two brothers all have had myocardial infarctions.
- C. The client uses sildenafil (Viagra) several times weekly for erectile dysfunction.
- D. The client is unable to remember when he first experienced chest pain.
Correct Answer: C
Rationale: Sildenafil and nitroglycerin together can cause severe hypotension; this interaction must be addressed immediately.
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Patella is a
- A. Irregular bone
- B. Short bone
- C. Sesamoid bone
- D. Flat bone
Correct Answer: C
Rationale: The patella is a sesamoid bone located within the tendon of the quadriceps femoris muscle. Sesamoid bones are small, round bones embedded within tendons, providing protection and improving the mechanical advantage of the muscle. It is not irregular (A), short (B), or flat (D) as it does not fit the structural characteristics of those bone types. Therefore, the correct answer is C.
The transmission of sound vibrations through the inner ear occurs chiefly through:
- A. Bone
- B. Nerve fibers
- C. Air
- D. Liquid
Correct Answer: D
Rationale: The correct answer is D: Liquid. Sound vibrations travel through the inner ear mainly through the liquid-filled cochlea. When sound waves reach the ear, they cause the fluid inside the cochlea to move, stimulating hair cells that convert the vibrations into electrical signals sent to the brain. Choice A (Bone) is incorrect as bone conduction bypasses the middle ear, while sound must pass through it to reach the cochlea. Choice B (Nerve fibers) is incorrect because nerves transmit the electrical signals generated by the hair cells, not sound vibrations themselves. Choice C (Air) is incorrect as the inner ear is filled with liquid, not air, and sound waves need a medium like air to travel through the ear canal but not inside the inner ear.
Paraurethral (Skene’s) glands secrete
- A. Estrogen
- B. Mucus
- C. Testosterone
- D. Androgens
Correct Answer: B
Rationale: The paraurethral (Skene's) glands are responsible for secreting mucus to facilitate lubrication during sexual arousal. This mucus aids in lubricating the urethra and providing moisture for sexual intercourse. Estrogen (Choice A) is a hormone produced by the ovaries and not directly related to the function of Skene's glands. Testosterone (Choice C) and androgens (Choice D) are male sex hormones and are not involved in the secretion of mucus by Skene's glands. Therefore, the correct answer is B, mucus, as it aligns with the known function of the paraurethral glands.
Which cells secrete testosterone?
- A. Sertoli cells
- B. Spermatogenic cells
- C. Leydig cells
- D. Oogonia
Correct Answer: C
Rationale: Step-by-step rationale:
1. Leydig cells are located in the testes and are responsible for secreting testosterone.
2. Testosterone is a male sex hormone crucial for regulating various functions in the body.
3. Sertoli cells provide support for sperm development, not testosterone secretion.
4. Spermatogenic cells are involved in sperm production, not testosterone secretion.
5. Oogonia are female germ cells, not involved in testosterone secretion.
Summary:
Choice C (Leydig cells) is correct because they are the specific cells in the testes responsible for secreting testosterone. Choices A, B, and D are incorrect as they are associated with other functions related to reproduction and are not involved in testosterone secretion.
To avoid a perineal tear the obstetrician cuts the perineum posteriorly before delivery. This process is called
- A. Perineorrhaphy
- B. Episiotomy
- C. Cesarean section
- D. Tubal ligation
Correct Answer: B
Rationale: The correct answer is B: Episiotomy. An episiotomy is a surgical incision made in the perineum during childbirth to enlarge the vaginal opening and prevent severe perineal tears. This procedure is performed to facilitate the delivery of the baby and reduce the risk of complications for both the mother and the baby. Perineorrhaphy (A) is a surgical repair of a perineal tear or episiotomy after childbirth, not the procedure of making the incision. Cesarean section (C) is a surgical procedure to deliver a baby through an incision in the mother's abdomen and uterus, not related to perineal tears. Tubal ligation (D) is a permanent form of female sterilization by blocking or sealing the fallopian tubes to prevent pregnancy, not relevant to perineal tears during childbirth.