Question

A nurse is caring for a client recently prescribed doxycycline (Doryx) for the treatment of a urinary tract infection.Which of the following statements below applies to doxycycline (Doryx)? (Select All that Apply.)

Answer 1

Correct Answers:

This medication may cause discoloration of the teeth
This medication should not be taken if you are lactating
This medication should not be administered to anyone under the age of 20 years old.

Rationale :

♦️Doxycycline is a tetracycline antibiotic that can cause permanent tooth discoloration in children and infants and is contraindicated in pregnancy and lactation due to risks to the developing fetus or infant. ♦️ Antacids (and calcium, iron, or magnesium) reduce absorption. ♦️However, it is generally avoided in children under 8 years, not 20. It does not cause hyperglycemia.

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Answer 2

Correct Answers:

ciprofloxacin (Cipro)

Rationale :

♦️Ciprofloxacin, a fluoroquinolone, is the drug of choice for anthrax exposure due to its broad-spectrum activity against gram-positive and some gram-negative organisms, including Bacillus anthracis. ♦️Other options are not effective against anthrax.

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Answer 3

Correct Answers:

This medication should be taken with a straw to avoid discoloration of the teeth

Rationale :

♦️Liquid iron supplements like ferrous sulfate can stain teeth, so a straw is recommended. It should not be taken with milk or antacids, as they reduce absorption. ♦️Timing at night is irrelevant to constipation prevention.

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Answer 4

Correct Answers:

mebendazole (Vermox)

Rationale :

♦️Mebendazole is an anthelmintic used to treat pinworm infections. ♦️The others are antifungals or antivirals and not effective against helminths.

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Answer 5

Correct Answers:

Inhibits replication by blocking folic acid synthesis

Rationale :

♦️Methotrexate is a folic acid antagonist, inhibiting dihydrofolate reductase, which blocks DNA synthesis in rapidly dividing cells. ♦️It is used for cancer, autoimmune diseases, and immunosuppression in transplant clients.

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Answer 6

Correct Answers:

Increase in the client’s liver panel.

Rationale :

♦️Fluconazole is metabolized by the liver and can cause hepatotoxicity, so LFTs should be monitored. ♦️It doesn’t cause red man syndrome or colored secretions.

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Answer 7

Correct Answers:

Fluoroquinolones
Macrolides

Rationale :

♦️Both fluoroquinolones (e.g., ciprofloxacin) and macrolides (e.g., erythromycin) can prolong the QT interval, increasing the risk of torsades de pointes. ♦️Other classes listed are not typically associated with QT prolongation.

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Answer 8

Correct Answers:

Orange-colored secretions

Rationale :

♦️Rifampin causes harmless orange discoloration of body fluids, including urine, sweat, and tears. ♦️Clients should be reassured this is expected.

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Answer 9

Correct Answers:

A typical course of treatment involves 6 to 12 months of consistent medication use.

Rationale :

♦️TB treatment requires long-term adherence (usually 6–12 months) to prevent resistance and relapse. ♦️The other statements are inaccurate or misleading.

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Answer 10

Correct Answers:

megeloblastic anemia

Rationale :

♦️Bactrim (sulfamethoxazole/trimethoprim) is contraindicated in CKD due to risk of nephrotoxicity and megaloblastic anemia due to folate antagonism. It’s not contraindicated for MS or H. pylori.

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QLexNursing

1 : A nurse is caring for a client recently prescribed doxycycline (Doryx) for the treatment of a urinary tract infection.Which of the following statements below applies to doxycycline (Doryx)? (Select All that Apply.)

2 : A client exposed to anthrax has presented to the healthcare setting. Which of the following medications below is the treatment for this biological exposure?

3 : A client recently diagnosed with Iron Deficiency Anemia is prescribed Ferrous Sulfate daily. Which of the following statements below is true regarding iron therapy?

4 : A client presents to the clinic with intense itching at night and diagnosed with Pinworms. The nurse anticipates the client would be placed on which medication to treat this condition?

5 : A client with a organ transplant has been placed on methotrexate (Rheumatrex). Which of the following mechanism of actions below describes this medication?

6 : The nurse is caring for a client with a fungal infection and prescribed fluconazole (Diflucan). Which of the following side effects should the nurse caution the client regarding?

7 : The charge nurse is performing an Inservice regarding the adverse effects of antibiotic therapy. Which of the following antibiotics should the nurse include regarding the potential to cause QT prolongation? (Select All that Apply.)

8 : A nurse is caring for a client who has active pulmonary tuberculosis (TB) and a new prescription for rifampin (Rifadin). The nurse should instruct the client that they should expect which of the following clinical manifestations while taking this medication?

9 : A nurse is instructing a client who is newly diagnosed with pulmonary tuberculosis (TB) about the use of antitubercular medications. Which of the following information should the nurse include in the teaching?

10 : A client diagnosed with a urinary tract infection (UTI) is prescribed sulfamethoxazole/trimethoprim (Bactrim). Which of the following conditions below would be a contraindication for this medication?