A nurse is preparing to administer 4,000 units of heparin subcutaneously to a client who has deep-vein thrombosis.

Available is heparin 10,000 units/mL.

How many mL of heparin should the nurse administer? (Round the answer to the nearest) tenth.

Use a leading zero if it applies.

Do not use a trailing zero.) mL.

Answer and Explanation

The Correct Answer is ["0.4"]

To calculate the amount of heparin to administer, use the formula:

mL of heparin=units available units ordered×1mL available

Substituting the values given in the question, we get:

mL of heparin=100004000×11=0.4

Therefore, the nurse should administer 0.4 mL of heparin.

Normal ranges for heparin therapy vary depending on the condition being treated and the laboratory method used to measure APTT.

A general range is 60 to 80 seconds or 1.5 to 2.5 times the control value.

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Correct Answer is C

Explanation

Lithium can cause hyponatremia by increasing the secretion of antidiuretic hormone and reducing the renal clearance of sodium.

Strenuous exercise can also cause hyponatremia by increasing sweat loss and fluid intake. Therefore, a client who is taking lithium and starting a new exercise program is at risk of developing hyponatremia.

Choice A is wrong because hypomagnesemia is not a common side effect of lithium or exercise.

Choice B is wrong because hypocalcemia is not a common side effect of lithium or exercise.

Choice D is wrong because hypokalemia is not a common side effect of lithium or exercise.

However, lithium can interact with some diuretics that can cause hypokalemia, so the client should avoid taking these drugs without consulting their doctor. Normal ranges for electrolytes are:

Sodium: 135-145 mmol/L

Magnesium: 0.7-1.1 mmol/L

Calcium: 2.1-2.6 mmol/L

Potassium: 3.5-5.0 mmol/L

A. Tinnitus. B. Insomnia. C. Orthostatic hypotension. D. Fluid retention.

Correct Answer is D

Explanation

Pioglitazone is a medication that belongs to a class of drugs called thiazolidinediones, which are used to treat type 2 diabetes by improving insulin sensitivity. One of the common side effects of pioglitazone is edema, which is swelling caused by excess fluid in the body tissues. This can lead to fluid retention and weight gain and may worsen heart failure in some patients.

Choice A is wrong because tinnitus, which is ringing or buzzing in the ears, is not a known side effect of pioglitazone.

Choice B is wrong because insomnia, which is difficulty falling or staying asleep, is not a known side effect of pioglitazone.

Choice C is wrong because orthostatic hypotension, which is a drop in blood pressure when standing up from a sitting or lying position, is not a known side effect of pioglitazone.

In fact, pioglitazone may cause low blood sugar (hypoglycemia) when used with other diabetes medications, which can cause symptoms such as dizziness, sweating, and confusion.

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is taking lithium and reports starting a new exercise program. The nurse should assess the client for which of the following electrolyte imbalances?

Correct Answer is C

Explanation

A nurse is caring for a client who has diabetes mellitus and is taking pioglitazone. The nurse should plan to monitor the client for which of the following adverse effects?

Correct Answer is D

Explanation

A nurse is assessing a client after administering phenytoin IV bolus for a seizure. Which of the following findings should the nurse identify as an adverse effect of this medication?

A nurse is caring for a client who is taking tamoxifen to treat breast cancer. The nurse should identify which of the following manifestations as an adverse effect of this medication?

A nurse is discussing adverse reactions to pain medications in older adult clients with a newly licensed nurse. Which of the following findings should the nurse include as risk factors for an adverse drug reaction? (Select all that apply)

A nurse is caring for a client who develops an anaphylactic reaction to IV antibiotic administration. After assessing the client’s respiratory status and stopping the medication infusion, which of the following actions should the nurse take next?

A nurse is teaching a newly licensed nurse about medication reconciliation. The nurse should instruct the newly licensed nurse to perform medication reconciliation for which of the following clients?

A nurse is reviewing the list of current medications for a client who is to start a new prescription for carbamazepine. The nurse should identify which of the following medications interacts with carbamazepine?

A nurse is administering 4 mg of hydromorphone to a client by mouth every 4 hr. The medication is provided as hydromorphone 8 mg per tablet. Which of the following actions is appropriate for the nurse to take?