Nokea
Glucocorticoids enhance:
- A. Inhibition of phospholipase A2 in leukocytes with stimulation of annexin synthesis
- B. Decrease of thrombocyte activating factor via inhibition of 5 lipooxigenase
- C. Inhibition of leukotriene synthesis and decrease of lyso-glycerilphosphorilcholine production
- D. inhibition of prostaglandin synthesis via blocking 12 lypooxigenase
Correct Answer: A
Rationale: Glucocorticoids inhibit phospholipase A2, reducing inflammatory mediators by stimulating annexin (lipocortin) synthesis.
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Drug levels should be monitored in the treatment of
- A. Diabetes
- B. Epilepsy
- C. Status Asthmatics
- D. Hypertension
Correct Answer: B
Rationale: Therapeutic drug monitoring is critical in epilepsy (e.g., phenytoin) due to narrow therapeutic ranges.
This graph shows the concentration-dependent effects of norepinephrine on arterial blood pressure, both alone, and in the presence of a fixed concentration of Drug X. Which type of antagonist is Drug X?
- A. Silent
- B. Non-competitive
- C. Competitive
- D. Chemical
Correct Answer: B
Rationale: A non-competitive antagonist reduces the maximal response without shifting the potency (EC50), as indicated by the answer key, likely showing a decreased maximum on the graph.
The following drug is used for diabetic coma:
- A. Glibenclamid
- B. Long acting insulin preparations
- C. The rapid and intermediate acting insulin preparations
- D. Metformin
Correct Answer: C
Rationale: Rapid and intermediate-acting insulins are used to quickly correct hyperglycemia in diabetic coma.
Which statement is true about over-the-counter (OTC) drugs?
- A. They are not listed in the USP NF
- B. A prescription from a healthcare provider is needed
- C. They are sold without a prescription
- D. They are known only by their brand names
Correct Answer: C
Rationale: OTC medications do not require a prescription and are sold freely, listed in the USP NF, and known by both generic and brand names.
The nurse is reviewing the history and physical examination of a client who will be receiving asparaginase (Elspar), an antineoplastic agent. The nurse consults with the registered nurse regarding the administration of the medication if which of the following is documented in the client's history?
- A. Pancreatitis
- B. Diabetes mellitus
- C. Myocardial infarction
- D. Chronic obstructive pulmonary disease
Correct Answer: A
Rationale: Asparaginase (Elspar) is contraindicated if hypersensitivity exists, in pancreatitis, or if the client has a history of pancreatitis. The medication impairs pancreatic function and pancreatic function tests should be performed before therapy begins and when a week or more has elapsed between administration of the doses. The client needs to be monitored for signs of pancreatitis, which include nausea, vomiting, and abdominal pain. The conditions noted in options 2, 3, and 4 are not contraindicated with this medication.