When should the nurse conduct an Allen's test?

Just before arterial blood gasses are drawn peripherally.

Prior to attempting a cardiac output calculation.

To assess for presence of a deep vein thrombus in the leg.

When pulmonary artery pressures are obtained.

Answer and Explanation

The Correct Answer is A

Allen's test is a procedure used to assess the patency of the ulnar artery and the collateral circulation of the hand. It is performed to determine the adequacy of collateral circulation before obtaining arterial blood gases from the radial artery. The test helps ensure that the ulnar artery is functioning properly and can supply blood to the hand if the radial artery is used for blood sampling or other invasive procedures.

The test involves occluding both the ulnar and radial arteries while the patient clenches their fist. The nurse then releases pressure on the ulnar artery while maintaining occlusion of the radial artery. The hand should quickly regain normal coloration, indicating adequate collateral circulation.
It's important to note that the Allen's test is specific to the assessment of collateral circulation in the hand and is not used for other purposes such as assessing deep vein thrombosis, cardiac output calculation, or obtaining pulmonary artery pressures.

Nursing Test Bank

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Correct Answer is C

Explanation

A) Incorrect- While providing comfort measures like blankets and warm drinks can help the client feel more comfortable, they do not address the underlying thyroid hormone imbalance.
B) Incorrect- Hemoglobin level is not directly related to the client's symptoms or the thyroid hormone imbalance. Monitoring hemoglobin is important in assessing anemia but is not the priority in this case.
C) Correct- The client's symptoms (raspy voice, cold intolerance, fatigue) along with an elevated TSH and low T3 and T4 levels suggest hypothyroidism. Levothyroxine is a synthetic thyroid hormone used to treat hypothyroidism. Administering the prescribed dose of levothyroxine is crucial to address the thyroid hormone imbalance and alleviate the symptoms.
D. Incorrect- Non-pitting edema is not a common symptom of hypothyroidism. The client's symptoms and lab results are more indicative of hypothyroidism, and addressing the thyroid hormone imbalance is the priority.

Correct Answer is ["0.3"]

Explanation

To calculate the mL of dalteparin to administer, we need to determine the total number

of units required for the client and then convert it to the volume based on the concentration provided.

First, we need to calculate the total number of units required: Weight of the client: 110 pounds

Dalteparin dosage: 150 units/kg Duration of treatment: 4 months

To convert the client's weight from pounds to kilograms, we divide it by 2.2: 110 pounds / 2.2 = 50 kilograms

Next, we calculate the total number of units required:

150 units/kg * 50 kilograms = 7,500 units

Now we can calculate the volume to administer:

7,500 units / 7,500 units/0.3 mL = 0.3 mL

Therefore, the nurse should administer 0.3 mL of dalteparin.

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When should the nurse conduct an Allen's test?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

A client who weighs 110 pounds receives a prescription for dalteparin 150 units/kg subcutaneously daily for 4 months. The medication is available in 7,500 units/0.3 mL prefilled syringe. How many mL should the nurse administer? (Enter numerical value only.)

Correct Answer is ["0.3"]

Explanation

When the nurse enters the room of a male client who was admitted for a fractured femur, his cardiac monitor displays a normal sinus rhythm (NSR), but he has no spontaneous respirations and his carotid pulse is not palpable. Which intervention should the nurse implement?

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