Angiotension II receptor agents medications usually end in?

Correct Answer: A

Rationale: Angiotensin II receptor agents medications usually end in -sartan. Examples of such medications include losartan, valsartan, and telmisartan. These drugs work by blocking the action of angiotensin II at its receptor sites, resulting in vasodilation and decreased aldosterone secretion. This class of medications is commonly used to treat conditions like hypertension, heart failure, and diabetic nephropathy.

Correct Answer: A

Rationale: Atropine given via intramuscular (IM) injection typically reaches its peak effects within 15 to 50 minutes after administration. The onset of action is relatively rapid, with faster absorption and distribution compared to oral administration. The effects of atropine can be seen within minutes, reaching peak concentration within the specified time frame. This rapid onset is important clinically when atropine is used to treat conditions such as bradycardia or nerve agent poisoning where a quick response is needed.

Correct Answer: A

Rationale: The concentration of a drug in the blood decreases by half with each half-life. Thus, after 4 to 5 half-lives, the amount of drug remaining in the blood would be approximately 6.25% to 3.125% of the original concentration. This translates to the concentration being around 50% or less, making the correct answer A. 50%.

Correct Answer: D

Rationale: Reye's syndrome is a rare but serious disorder that primarily affects children and teenagers. It is characterized by an acute encephalopathic illness along with fatty degeneration of the liver and other viscera. Reye's syndrome typically arises after a viral infection, such as influenza or chickenpox, rather than being enhanced by sodium and water retention. This condition is not caused by excessive sodium and water retention but rather by a possible link to the use of aspirin during viral infections in children.

Correct Answer: D

Rationale: Benzodiazepines, such as medications used for sleep aid, are known for their potential to cause physical dependence. If a patient abruptly stops taking benzodiazepines after using them regularly for an extended period, they are at risk of experiencing withdrawal symptoms. These withdrawal symptoms can be severe and may include rebound insomnia, anxiety, agitation, tremors, sweating, and even seizures in some cases. To prevent or minimize the likelihood of withdrawal symptoms, it is important for patients to gradually taper off the medication under the guidance of a healthcare provider. This gradual tapering helps the body adjust slowly to decreasing doses of the medication, reducing the risk of withdrawal effects.