Nokea
Intravenous injections are more suitable for oily solutions:
- A. TRUE
- B. FALSE
- C. All
- D. None
Correct Answer: B
Rationale: The correct answer is B: FALSE. Intravenous injections are not suitable for oily solutions due to the risk of causing pulmonary embolism or other serious complications. Oily solutions can lead to blockages in the blood vessels, posing significant health risks. Other choices are incorrect because intravenous injections should not be used for all oily solutions (Choice C) or none of them (Choice D) due to the potential harm they can cause.
You may also like to solve these questions
A patient asks the nurse about the uses of echinacea. Which use will the nurse include in the response?
- A. Memory enhancement
- B. Boosting the immune system
- C. Improving mood
- D. Promoting relaxation
Correct Answer: B
Rationale: The correct answer is B: Boosting the immune system. Echinacea is commonly used for its immune-boosting properties due to its ability to stimulate the immune system. It can help the body fight off infections and illnesses.
Rationale:
1. Echinacea has been traditionally used for its immune-enhancing effects.
2. Research studies have shown that echinacea can increase the production of white blood cells, which are crucial for fighting infections.
3. Echinacea is often recommended to shorten the duration of colds and flu by supporting the immune response.
4. Memory enhancement (A), improving mood (C), and promoting relaxation (D) are not commonly associated with echinacea use based on scientific evidence.
You prescribed digoxin for the treatment of chronic heart failure. The following is an indicator of improvement:
- A. Decreased heart rate
- B. Decreased parasympathetic flow
- C. Increased aldosterone
- D. Increased rennin secretion
Correct Answer: A
Rationale: Digoxin slows heart rate via vagal stimulation, indicating improved heart failure control.
Which of the following CNS psychostimulants is a sydnonymine derivative?
- A. Caffeine
- B. Sydnocarb
- C. Meridil (methylphenidate hydrochloride)
- D. Amphetamine
Correct Answer: B
Rationale: The correct answer is B: Sydnocarb. Sydnocarb is a CNS psychostimulant that is a sydnonymine derivative. This is because the chemical structure of Sydnocarb contains the sydnone imine group, which is characteristic of sydnonimine derivatives.
A: Caffeine is not a sydnonimine derivative, as it does not contain the sydnone imine group.
C: Meridil (methylphenidate hydrochloride) is not a sydnonimine derivative, as it does not contain the sydnone imine group.
D: Amphetamine is not a sydnonimine derivative, as it does not contain the sydnone imine group.
Currently used dopamine agonists decreasing pituitary prolactin secretion are following:
- A. Bromocriptine
- B. Cabergoline
- C. Pergolide
- D. All of the above
Correct Answer: D
Rationale: The correct answer is D because all three dopamine agonists, Bromocriptine, Cabergoline, and Pergolide, are known to decrease pituitary prolactin secretion. Dopamine inhibits prolactin release from the pituitary gland, and these agonists mimic dopamine's action. Therefore, all three choices are correct.
Summary:
A: Bromocriptine - Decreases pituitary prolactin secretion.
B: Cabergoline - Decreases pituitary prolactin secretion.
C: Pergolide - Decreases pituitary prolactin secretion.
All choices are correct as they are dopamine agonists that decrease pituitary prolactin secretion.
All of the following are common adverse effects of calcium channel blockers EXCEPT:
- A. Skeletal muscle weakness
- B. Dizziness
- C. Headache
- D. Flushing
Correct Answer: A
Rationale: The correct answer is A: Skeletal muscle weakness. Calcium channel blockers primarily affect smooth muscle in blood vessels and the heart, not skeletal muscles. Dizziness, headache, and flushing are common adverse effects due to vasodilation and reduced cardiac output. Therefore, the correct answer is A because skeletal muscle weakness is not a typical adverse effect of calcium channel blockers.