Which method are for administering drugs by parenteral routes? (Select all that apply.)
Subcutaneous
Intramuscular
Via a nasogastric tube
Intradermal
Intravenous
Correct Answer : A,B,D,E
A) Subcutaneous:
The subcutaneous route involves administering medication into the layer of fat and connective tissue beneath the skin. This method is used for drugs that require slower absorption, such as insulin or certain vaccines.
B) Intramuscular:
The intramuscular route involves injecting medication directly into a muscle. This allows for faster absorption compared to subcutaneous injections, making it ideal for drugs that need to be absorbed quickly, such as vaccines or certain antibiotics.
C) Via a nasogastric tube:
Administering drugs via a nasogastric tube is not considered a parenteral route. The nasogastric (NG) tube delivers medications directly into the stomach via the gastrointestinal tract, which is not part of the parenteral system. Parenteral routes are those that bypass the digestive system, like injections.
D) Intradermal:
The intradermal route involves injecting medication just under the skin, in the dermis. This is typically used for allergy testing or tuberculosis screenings. It is a parenteral route because it bypasses the digestive system.
E) Intravenous:
The intravenous route involves injecting medication directly into a vein, offering rapid absorption and fast onset of action. This method is ideal for critical or emergency situations where immediate medication effects are necessary.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Neutropenia
Neutropenia refers to an abnormally low level of neutrophils, a type of white blood cell. While certain medications, such as chemotherapy agents and some antipsychotic drugs, can cause neutropenia, atenolol (a beta-blocker) is not typically associated with this side effect. Atenolol primarily affects the cardiovascular system by reducing heart rate and blood pressure, and it is not known to cause significant changes in white blood cell counts.
B) Bradycardia
Bradycardia, or a slower-than-normal heart rate, is a well-known and common adverse effect of beta-blockers, including atenolol. Beta-blockers work by blocking beta-adrenergic receptors, which decreases the heart rate and the force of contraction, as well as lowering blood pressure. In some individuals, this can lead to excessively low heart rates, which could be dangerous if the heart rate drops too much. Bradycardia can lead to symptoms such as dizziness, fainting, or fatigue, and may require dose adjustments or discontinuation of the medication
C) Anemia
Anemia, which is a condition characterized by a low red blood cell count or low hemoglobin levels, is generally not a common adverse effect of atenolol. While certain medications like some chemotherapeutic agents, NSAIDs, or antibiotics may cause anemia due to their effects on the bone marrow or by causing gastrointestinal bleeding, atenolol is not typically linked to this side effect.
D) Hypokalemia
Hypokalemia (low potassium levels) is typically associated with the use of diuretics or other medications that cause the kidneys to excrete more potassium, such as some classes of antibiotics and corticosteroids. However, atenolol, being a beta-blocker, does not directly affect potassium levels.
Correct Answer is B
Explanation
Calculate the dosage using the ratio and proportion:
Given:
Order: 200 mg p.o. t.i.d.
Available: Tegretol 100 mg chewable tablets.
Step 1: Set up the proportion
Availabledose(100mg) : 1tablet = Ordereddose(200mg) : xtablets
Step 2: Solve for ?
100 mg : 1 tab = 200 mg : ? tabs
? = 200/100 = 2 tablets
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