In this article, we'll explain the key facts you need to know about how prescriptions work, including the different types, the components of a complete prescription, and what it really means when a drug is ordered "STAT"! We'll also explain the basic facts of safe medication administration and best practices steps you can take to ensure safety for your patients.
This series follows along with our Pharmacology Basics and Safe Medication Administration Flashcards for Nursing Students which are intended to help RN and PN nursing students build a strong foundation going into Pharmacology and as preparation for the ATI, HESI, and NCLEX.
Pharmacology - Nursing Flashcards
Prescriptions
In this section, we'll cover types of prescriptions, components of a complete prescription, telephone orders and error-prone abbreviations you should avoid.
Types of prescriptions
There are several types of prescriptions, as it pertains to timing and immediacy of administration, including time-critical scheduled medications, non-time-critical scheduled medications, one-time single dose prescriptions, STAT orders, PRN (as needed) medications, and standing orders.
Time-critical scheduled medications
Time-critical scheduled medications are given on a regular schedule that is important to adhere to. These medications need to be administered within 30 minutes of the scheduled time—so they can be up to 30 minutes early or 30 minutes late, but it has to fall in that window.
Some medications that fall into the time-critical category are antibiotics, anticoagulants, and insulin.
Non time-critical scheduled medications
Non-time-critical scheduled medications are given on a regular schedule, but the timing is not as strictly enforced as with the time-critical medications.
Medications that are scheduled daily, weekly, or monthly can be given within two hours of the scheduled time.
If a medication is prescribed more frequently than daily, e.g. BID (twice daily) or TID (thrice daily) can be given within one hour of the scheduled time. This excludes medications administered more frequently than every four hours, which are usually considered in the time-critical category anyway.
Every facility will have its own policies, so definitely follow your facility's guidelines on when you need to give different medications for your patients.
One-time (single dose)
A one-time or single-dose prescription is given once at a specific time. This might include a drug given prior to a procedure specifically for the procedure.
STAT
A STAT order is a medication that is given once immediately. This is the same "stat!" that you hear providers order on TV, and stat is short for the latin statim, which means immediately.
PRN
PRN prescriptions are given as needed—PRN stands for the latin pro re nata, which means as needed. PRN prescriptions will include the dose, frequency, and under what circumstances you can give the medication. The most common PRN medications include pain medications and nausea medications.
Standing
Standing orders are pre-written medication orders that can be given for defined circumstances on a particular unit or floor. These may be replaced by protocols in some facilities, but the idea is that they are generalized to the floor or unit, and are not written for a specific patient.
For example, there are often standing orders for hypoglycemia. So if your patient experiences hypoglycemia, you can refer to those standing orders and get them glucagon right away. That way you don't have to call the provider and wait for them to call you back, in an emergency situation while your patient is in a hypoglycemic coma. Standing orders are very useful in this circumstance.
Another example of a standing order may be nitroglycerin for chest pain, so that you can automatically give nitroglycerin to your patient who is having chest pain. These two examples were provided by Cathy based on what she has seen at her facility, but it will depend on your facility's protocols.
Components of a prescription
There are certain components of a prescription required for it to be considered complete. Every prescription needs to include:
- Patient's name
- Date and time of the prescription
- Medication name
- Dose, strength, and form of the medication
- Frequency of administration
- Route of administration
- Refills, if allowed
- Provider's signature.
Telephone orders
As a nurse, it is usually standard practice that you will be taking telephone orders. There are some best practices to follow when it comes to taking a telephone order.
Have a second RN listen in on the call to be sure that you're getting an accurate prescription.
Repeat the prescription back. The provider will give you the prescription over the phone, you will write that down, and then repeat back what you have written to ensure accuracy.
Finally, make sure the provider signs that prescription within 24 hours.
Error-prone abbreviations
There are a number of abbreviations that you should not use in your prescriptions because they are error-prone. A complete list of error-prone abbreviations can be found with the Institute for Safe Medication Practices (ISMP). Here, we've included a list of the most important ones to avoid.
MS and MSO4 should not be used when prescribing morphine. Spell out morphine.
Do not use MgSO4 for magnesium sulfate. Spell out magnesium sulfate. This and the rule above are related because MsO4 and MgSO4 can be easily visually confused, which could lead to harmful results.
Do not use U or IU for units. U and IU can look like numbers, leading to a 10-fold overdose or greater. Spell out the word units.
Do not use q.d. for daily, because it can be confused with q.i.d., which means four times daily. Spell out daily.
Do not use q.o.d. for every other day, because it can be confused with q.d. or q.i.d., meaning daily or four times daily. Spell out every other day
Do not use SC, SQ, or sub-Q for subcutaneously. SC can be mistaken for SL which means sublingual, and SQ can look like "5 every." That's why subcutaneously is spelled out.
Decimals and leading/trailing zeros best practices
Use a leading zero on decimals under 1. This means you would write 0.5, not just .5.
For example, if your patient is prescribed 0.5 mg of dilaudid, but you wrote .5mg, the decimal by itself is not very visible. It could easily be mistaken for 5mg dilaudid, which is a 10-fold overdose.
Do not use a trailing zero on decimals. This means you would write 2mg, not 2.0mg.
For example, if your patient was prescribed 2 mg of Dilaudid but you wrote 2.0mg, again, the decimal is not very visible. It could easily be mistaken as 20mg of dilaudid, which hopefully you would immediately question, but would not be good.
Cathy's hint for remembering this is that you want to be a leader (leading zero) and not a follower (trailing zero).
Medication administration
In this section, we'll explain the "rights" of safe medication administration, as well as some medication administration best practices to help keep your patients safe.
Rights of safe medication administration
The rights of safe medication administration are a list of things that you want to make sure you get right during administration! Depending on which textbook or source you reference, you may see anywhere from 5 rights to 12 rights—it varies across sources, but we have prioritized them here for you.
There are around 5 rights that are common across many sources, including:
- the right patient,
- the right medication,
- the right dose,
- the right route,
- (If you want to learn more about routes of administration, check out these articles:
Routes of Administration: Oral, NG/G-tube, Sublingual, Transdermal, Inhalation, Optic, Otic
Routes of Administration: Intradermal, Subcutaneous, Intramuscular
Routes of Administration: Peripheral IVs, Central Venous Catheters) - and the right time.
Other rights that may be included in your textbook or source include:
- the right patient education,
- the right for a patient to refuse their medication,
- the right nursing documentation (charting),
- and then the right assessment before and after medication administration.
Medication administration best practices
These are some core best practices to follow when administering medications. We will go into more detail in the rest of this series, and also in your Fundamentals studies, but this is a good starter list.
Allergies
Identify your patient's allergies before you give them any medication.
Questioning prescriptions
Question any illegible or incomplete medication order. Remember the list of prescription components above? If any of those pieces are missing (with the exception of a signature for a telephone order you just took), the prescription is not complete.
Also, if you see a prescription for a contraindicated medication or an inappropriate dose (e.g., the aforementioned 20mg of dilaudid!) then you should contact the provider to question those prescriptions.
Preparing medications
Only prepare medications for one patient at a time, and only administer medications that you have personally prepared.
High-alert medications
There are also several high-alert medications that often require an independent double-check with another RN. For example, this could include heparin or insulin.
Medication supervision
Don't leave a medication at the patient's bedside. If you attempt to give your patient a medication and they say, "I don't really want to take it right now. You can just leave it here at the bedside," don't do that. You would bring it with you, and then bring it back when the patient is willing to take that medication.
Incident reports
Complete an incident report for any medication error. Don't include this incident report in the patient's chart, or refer to this incident report in the patient's chart, because the incident report's purpose is to be used for quality improvement at the facility.