LPN Fundamentals of Nursing

Correct Answer: C

Rationale: Crackles in the lungs are a classic sign of fluid volume overload. When there is an excess of fluid in the lungs, it can manifest as crackling sounds upon auscultation. This finding indicates the accumulation of fluid in the alveoli and interstitial spaces of the lungs, which is a common manifestation of fluid volume overload.

Correct Answer: A

Rationale: The correct answer is A because taking the pulse before administering digoxin is crucial as the medication can cause bradycardia. Monitoring the pulse helps in identifying any signs of bradycardia, a common side effect of digoxin. Options B, C, and D are incorrect. Taking digoxin with an antacid may interfere with its absorption. Doubling the dose if a dose is missed can lead to overdose and adverse effects. Avoiding bananas is not specifically related to digoxin therapy.

Correct Answer: D

Rationale: Redness and warmth of the affected limb are classic signs of deep-vein thrombosis (DVT) due to inflammation and increased blood flow. These symptoms occur as a result of the blood clot obstructing normal blood flow and causing localized inflammation in the affected limb. Swelling of the affected limb, diminished peripheral pulses, and coolness are not typically associated with DVT. Swelling can be present but is often accompanied by the characteristic redness and warmth. Diminished pulses and coolness are more indicative of arterial insufficiency rather than venous thrombosis.

Correct Answer: D

Rationale: Lubricating the catheter tip before insertion is crucial for female urinary catheterization. This step helps reduce discomfort for the patient and facilitates smooth catheter insertion into the urethra. Using sterile technique maintains asepsis during the procedure, inserting the catheter 2-3 inches ensures proper placement, and inflating the balloon after insertion secures the catheter in place without causing trauma. Proper technique is fundamental for patient comfort, preventing infection, and ensuring the success of the catheterization procedure.

Correct Answer: A

Rationale: Encouraging the use of an incentive spirometer is crucial in preventing respiratory complications postoperatively. The incentive spirometer helps the client perform deep breathing exercises, which can prevent atelectasis (lung collapse) and promote lung expansion. This, in turn, reduces the risk of respiratory complications such as pneumonia. Restricting fluid intake, placing the client in a supine position, and administering a cough suppressant are not appropriate actions for preventing respiratory complications in a postoperative client.