ATI Pharmacology Exam

Correct Answer:

Add a spacer to each MDI.

Explanation:

The correct answer is to add a spacer to each metered-dose inhaler (MDI). A spacer is an essential device that helps ensure proper medication delivery, particularly for young children who may have difficulty coordinating inhalation with the activation of the inhaler. It holds the medication momentarily after it is released, allowing the child more time to inhale the dose effectively. This improves the delivery of the medication to the lungs and reduces the amount that is deposited in the mouth and throat, which can minimize side effects such as oral candidiasis. Using a spacer can significantly improve the efficacy of the medication and reduce the risk of complications associated with improper inhaler use.

Why Other Options Are Wrong:

Instruct the child to inhale more rapidly than usual when using an MDI

This is incorrect. When using an MDI, the child should be taught to inhale slowly and deeply, not rapidly. A slow and steady inhalation ensures that the medication particles can travel to the lower airways where they are most needed. Rapid inhalation often causes the medication to get deposited in the mouth and throat, reducing its effectiveness and potentially increasing side effects.

Request that the provider change the child's medications from inhaled to oral formulation

This is incorrect. Inhaled medications are generally preferred for asthma treatment, as they act directly on the lungs and provide quicker relief with fewer systemic side effects compared to oral medications. Oral medications, while sometimes necessary, are typically not the first-line treatment unless the child is unable to use an inhaler correctly or has specific contraindications. Switching to oral medications should not be a routine response.

Administer oxygen by facemask along with the MDI

This is incorrect. Oxygen administration by facemask is not indicated during routine use of an MDI. Oxygen therapy is reserved for situations of acute exacerbation or severe respiratory distress, not for routine inhaler use. Using oxygen unnecessarily can be harmful and does not contribute to the effective delivery of inhaled medications.

Correct Answer A. Decreased urine specific gravity

Explanation of Correct Answer:

A. Decreased urine specific gravity

Furosemide is a loop diuretic that works by promoting the excretion of excess fluids and electrolytes, primarily sodium and water. A therapeutic response to furosemide would be a decrease in urine specific gravity, indicating that the kidneys are producing more dilute urine as the body excretes excess fluid. This is a sign of effective diuresis and fluid balance.

Why the Other Options Are Incorrect:

B. Increased calcium level

This is incorrect because furosemide is more likely to cause a decrease in calcium levels (hypocalcemia) rather than an increase. Furosemide can lead to the excretion of calcium through the kidneys.

C. Increased serum sodium level

This is incorrect because furosemide promotes the excretion of sodium along with other electrolytes. A decrease in sodium levels (hyponatremia) is more likely to occur with diuretic use, especially if fluid loss is excessive.

D. Decreased liver enzymes

This is incorrect because liver enzyme levels are not directly impacted by furosemide. Decreased liver enzymes would indicate liver improvement or reduced liver damage, but this is not related to the therapeutic effect of furosemide, which focuses on fluid balance and diuresis

Correct Answer A. The vial was out of the refrigerator for 2 hr before the medication was administered.

Explanation of Correct Answer:

A. The vial was out of the refrigerator for 2 hr before the medication was administered.

Filgrastim (a granulocyte colony-stimulating factor) must be stored in the refrigerator to maintain its stability and efficacy. If the vial was left out at room temperature for 2 hours, it could lead to compromised medication quality and effectiveness, which is a significant error. This situation requires an incident report because it involves a deviation from proper medication storage guidelines that could affect the safety and effectiveness of the medication.

Why the Other Options Are Incorrect:

B. The client had a decreased neutrophil count before the medication was administered.

It is normal for clients receiving chemotherapy to have a decreased neutrophil count (neutropenia). Filgrastim is prescribed to stimulate neutrophil production, and a low neutrophil count is the reason for administering the medication. This is not an error.

C. The client had chemotherapy 12 hr before the medication was administered.

There are no specific contraindications regarding the timing of chemotherapy and filgrastim administration, as filgrastim is often given after chemotherapy to stimulate neutrophil production. The timing of chemotherapy being 12 hours before is not an error.

D. The client reported feeling nauseous after the medication was administered.

Nausea can be a common side effect of both chemotherapy and filgrastim. This adverse effect is known, and there is no indication that it is due to improper administration or a medication error. This does not require an incident report.

Correct Answers:

A. Increase your fiber intake to prevent constipation.

C. Drink the elixir using a straw to prevent staining your teeth.

Explanation:

A. Increase your fiber intake to prevent constipation.

Iron supplements, including ferrous sulfate, commonly cause constipation. Increasing fiber intake can help prevent this side effect and promote regular bowel movements. This is an appropriate instruction for the client.

C. Drink the elixir using a straw to prevent staining your teeth.

Iron supplements, particularly in liquid form, can stain the teeth. Drinking the elixir through a straw helps minimize contact with the teeth and prevents staining.

Why the Other Options Are Incorrect:

B. Stop taking the medication if your stools become green or black.

Green or black stools are a normal side effect of iron supplements and do not require discontinuing the medication. This is not something to be concerned about.

D. Increase your intake of dairy products to increase the absorption of this medication.

Dairy products actually inhibit the absorption of iron, so this instruction is incorrect. The client should avoid consuming dairy products at the same time as iron supplements for optimal absorption.

E. Take the medication with an antacid if it upsets your stomach.

Antacids decrease the absorption of iron. Therefore, taking iron with an antacid is not recommended, as it may reduce the effectiveness of the medication. If the client experiences stomach upset, the nurse should suggest taking the iron with food instead, but not with antacids.

Correct Answer: Schedule the medication on alternate days to decrease adverse effects

Explanation:

When long-term oral prednisone therapy is necessary, alternate-day dosing can be used to minimize the risks associated with chronic corticosteroid use, such as adrenal suppression, osteoporosis, hyperglycemia, and immunosuppression. By scheduling the medication on alternate days, the adrenal glands have time to recover and resume some of their normal function. This approach also reduces the overall burden on the body, helping to mitigate the side effects that are typically seen with continuous daily dosing of corticosteroids. It is important for healthcare providers to monitor patients closely and ensure that this strategy is properly implemented to maximize benefits and minimize risks.

Why Other Options Are Wrong:

Stop taking medication if rash occurs

This is incorrect because abruptly stopping prednisone can be dangerous, especially after long-term use, due to the risk of adrenal insufficiency. Corticosteroids need to be tapered gradually under medical supervision to allow the body to adjust. A rash could be a sign of an allergic reaction or other side effects, but it should not lead to immediate discontinuation of the medication without consulting a healthcare provider. The provider may decide on the appropriate course of action, which could include adjusting the dosage or switching medications.

Take medication on an empty stomach to enhance absorption

This is incorrect because prednisone should be taken with food to minimize gastrointestinal irritation and reduce the risk of developing peptic ulcers. Taking prednisone on an empty stomach can increase the likelihood of stomach upset, gastrointestinal bleeding, and other adverse digestive issues. It is recommended to take prednisone with food or milk to protect the stomach lining and prevent these complications.

Treat shortness of breath with an extra dose of the medication

This is incorrect because prednisone is a maintenance medication, not a rescue drug. While it is used for chronic inflammatory conditions, it is not designed for immediate relief of acute symptoms like shortness of breath. Shortness of breath in these situations should be addressed with a rescue inhaler, such as albuterol, which acts quickly to open the airways. Taking an extra dose of prednisone to treat acute symptoms could lead to an overdose and exacerbate the risks of side effects, such as immunosuppression or hyperglycemia.

Correct Answer: Carry a medic alert ID card.

Explanation:

This is the correct answer. Warfarin is an oral anticoagulant that prevents blood clots but also carries a high risk for serious bleeding, especially in emergency situations. A medic alert ID card or bracelet is crucial because it informs healthcare providers about the client's warfarin use in case of an emergency, which can impact treatment decisions, surgeries, or trauma care. Emergency providers must be aware of the anticoagulant therapy to prevent bleeding complications or drug interactions. This safety measure ensures that the client receives proper and prompt care.

Why Other Options Are Wrong:

Take ibuprofen as needed for headache or other minor pains.

This is incorrect because ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID), increases the risk of gastrointestinal bleeding, particularly when taken with warfarin. Both warfarin and NSAIDs affect platelet function and increase bleeding risk. Therefore, clients on warfarin should avoid NSAIDs and use acetaminophen for minor pain relief, unless otherwise directed by their healthcare provider.

Report to the laboratory weekly to have blood drawn for aPTT.

This is incorrect because the activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin. Warfarin therapy is monitored by the International Normalized Ratio (INR), which reflects how long it takes for the blood to clot. The INR is derived from Prothrombin Time (PT) and should be checked regularly to ensure the dose of warfarin is within the therapeutic range. Monitoring aPTT is not applicable to clients on warfarin.

Increase intake of dark green vegetables.

This is incorrect because dark green vegetables like spinach, kale, and broccoli are high in vitamin K, which can counteract the effects of warfarin. Warfarin works by inhibiting vitamin K-dependent clotting factors, and a sudden increase in vitamin K intake can reduce its effectiveness. Clients on warfarin should maintain a consistent intake of vitamin K in their diet, avoiding drastic changes, and consult their healthcare provider before making dietary adjustments.

Summary:

Clients taking warfarin should be instructed to carry a medic alert ID card, which alerts healthcare providers to their use of the medication in emergencies. They should avoid NSAIDs, monitor INR regularly (not aPTT), and maintain a consistent intake of vitamin K without increasing it significantly. This education helps prevent complications associated with warfarin therapy.

Correct Answer: Alcohol use disorder

Explanation:

Alcohol use disorder is a contraindication for acetaminophen due to the increased risk of hepatotoxicity (liver damage). Chronic alcohol consumption depletes glutathione, a substance needed to neutralize a toxic metabolite of acetaminophen (NAPQI). When glutathione levels are low, acetaminophen can cause liver injury, even at therapeutic doses. For individuals with alcohol use disorder, the liver's ability to process acetaminophen is compromised, increasing the risk of acute liver failure or exacerbating existing liver conditions.

Why Other Options are Wrong:

Chronic kidney disease

This is incorrect. While kidney function should be monitored in all patients, acetaminophen is primarily metabolized by the liver, not the kidneys. It is generally considered safer than nonsteroidal anti-inflammatory drugs (NSAIDs), which can harm the kidneys. Chronic kidney disease does not directly contraindicate acetaminophen use, though caution is always advised for any medication in patients with compromised renal function.

Hepatitis B vaccine within the last week

This is incorrect. Receiving the Hepatitis B vaccine does not contraindicate acetaminophen use. In fact, acetaminophen is commonly used to alleviate discomfort or fever following vaccinations, including the Hepatitis B vaccine. There are no known adverse interactions between the Hepatitis B vaccine and acetaminophen.

Diabetes mellitus

This is incorrect. Diabetes mellitus is not a contraindication for acetaminophen use. Although patients with diabetes may need additional monitoring for other comorbidities (like liver or kidney disease), diabetes itself does not prevent the safe use of acetaminophen.

Correct Answer: Notify the provider

Explanation:

The first priority after a medication error is to ensure client safety. Notifying the provider immediately allows for prompt evaluation and intervention, such as ordering blood levels of digoxin or monitoring for signs of toxicity, which can include nausea, visual disturbances, or bradycardia. The provider needs this information to assess the situation, determine the level of harm, and potentially implement corrective measures, such as adjusting the treatment plan or administering an antidote. Prompt communication with the provider is crucial to mitigate any potential risks associated with the medication error and ensure proper care moving forward.

Why Other Options Are Wrong:

Contact the nursing supervisor

This is incorrect because, while the nursing supervisor should be informed as part of the hospital's protocol and for documentation purposes, client safety must be prioritized. The first action should be notifying the provider, who can give immediate instructions for addressing the error. The nursing supervisor's involvement is important but should not delay medical intervention, which is needed to assess the client’s condition and address potential toxicity.

Assess the client’s apical pulse

This is incorrect because, while it is essential to monitor the apical pulse when a client is on digoxin, this action should come after notifying the provider. The provider needs to be informed promptly to assess the situation medically, potentially order labs (e.g., digoxin levels), and determine the appropriate course of action. After the provider has been notified, monitoring the pulse and other signs of toxicity should follow, but this is secondary to ensuring the provider is made aware.

Complete an incident report

This is incorrect because completing an incident report, although an essential part of documentation and risk management, is not a priority in this scenario. The immediate concern should be addressing the patient’s safety through appropriate medical intervention, which starts with notifying the provider. Once the patient’s safety has been ensured and the provider has been notified, the incident report can be completed as part of the facility's protocol, but this should not delay urgent medical actions.

Correct Answer A. I should notify my provider if my stools turn black.

Explanation of Correct Answer

A. I should notify my provider if my stools turn black.

While black stools are a normal side effect of iron supplements, the client may still be instructed to notify the provider if they experience severe or unexpected side effects. It is crucial for the nurse to reinforce that while black stools are typically harmless with iron supplementation, other symptoms of gastrointestinal bleeding (such as stomach pain, vomiting blood, or bright red blood in the stool) could be a concern, and the provider should be informed in those cases.

Why the Other Options Are Incorrect:

B. I should take an antacid with this medication to prevent stomach upset.

This is incorrect because antacids can decrease the absorption of iron and should not be taken with ferrous gluconate. To avoid stomach upset, the nurse should recommend taking iron with a small amount of food or vitamin C (like orange juice) for better absorption.

C. I should take this medication with 8 ounces of milk.

This is incorrect because milk can reduce the absorption of iron. It’s recommended to take iron supplements with water or juice (preferably orange juice), which enhances absorption.

D. I should stay upright for at least 15 minutes after taking this medication.

While it is helpful to stay upright after taking iron to prevent gastrointestinal irritation, this is not the most critical instruction. The more critical aspect of managing side effects is ensuring the client understands the importance of notifying the provider for any concerning symptoms, as indicated in Option A.